Which of the following are symptoms associated with pernicious anemia? (select all that apply)
a. sore tongue
b. diarrhea and upset stomach
c. insomnia
d. paresthesias
e. arthralgia
f. weakness and fatigue

the correct answer is option a, b, d, and f.

Explanation:

When the body is not able to make enough healthy RBCs due to B-12 deficiency this condition called pernicious anemia. It is a treatable condition with the help of the B-12 shots or pills. The major reason is the lack of a stomach protein known as Intrinsic factor which is essential for the absorption of the B-12.

Symptoms associated with this condition are -  

Fatigue, shortness of breath, cold hands and feet, Paresthesias, feeling dizzy, chest pain, pale or yellow skin, depression, and trouble focusing and others.

Thus, the correct answer is option a, b, d, and f.