Identify the correct sentence.

a.
she arrived at the job interview a half hour late and dressed in well-worn, shabby clothes, which did not make a good impression.
b.
she arrived at the job interview a half hour late and dressed in well-worn, shabby clothes. this did not make a good impression.
c.
she arrived at the job interview a half hour late and dressed in well-worn, shabby clothes. that did not make a good impression.
d.
she arrived at the job interview a half hour late and dressed in well-worn, shabby clothes. her lateness and casual dress did not make a good impression.

explanation:

it's important for any number of settings.   but then i'm a retired teacher and my view may be biased.

it certainly will not weigh as a minus when applying to a college, while poor grades always work against you.

other factors are important like what you do to improve the community.  

an old person

explanation:

i agree so i wont repert this question

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."