In a group discussion, which sentence is most clearly challenging the
credibility of a source?
o
a. i disagree with gutierrez completely that quantum computers will
be faster than current computers
8. gutierrez's article is way too old to say anything relevant about
computer science today
c. when gutierrez refers to gubite, she's talking about the field of
quantum computing
d. the purpose of gutierrez's article is to make a point, not to teach a lesson about something technical

B). Gutierrez's article is way too old to say anything relevant about  computer science today.

Explanation:

Establishing the credibility of the claims proposed is one of the most crucial steps for an author/speaker to persuade the readers and evoke the desired response as an unreliable claim may not only degrade one's credibility but also lead to disappointment and embarrassment. Therefore, the claims require to be based on 'reliable sources' so, it could be justified with sufficient evidences and neglect the counterclaims effectively.

As per the question, the statement that most evidently challenges the credibility of the source is displayed through option B as it suggests that 'Gutierrez's article is too old ...to...relevant' that disproves the 'validity of the source'. Thus, option B is the correct answer.

idk

explanation:

laughter and happiness are an essential part of life. laughing releases the body's "feel good" chemicals. thus, it provides long or short term relief from stress and or anxiety. more or less, laughing strengthens social connections and provides an easy approach in social related situations.

moreover, there are many benefits of laughter and humor. it's as if they play the role of superhero to combat anxiety and depression, according to researchers. happiness and laughter is the best medicine for teen mental health.

what happens in the body also affects the mind. the positive changes in physical health also have profound an impact on mental health. we have a lot to gain from laughing! medical effects of laughter have continued to validate the pain-relieving effect and benefits of laughter.

scientists tell us that laughter and humor actually, believe it or not, lower blood pressure, reduce stress hormones and increase muscle flexion. there are many benefits to happiness and laughter, and they so happen to increase the circulation of antibodies in the blood stream and make us resistant to infections.

as stated before, laughing releases your body's "feel good" chemicals, and on a related note, negative stress can cause your body to release chemicals that weaken your immune system which makes you more likely to contract a disease. luckily, laughter reduces negative stress and prevents those chemicals from being released.

all in all, you may want to consider laughing as much as you can!