Based on passage a, it is logical to infer that mrs. sommers avoided "such morbid retrospection" because: a. she wanted to stay focused on her daily activities. b. she did not want it to interfere with saving money for her family. c. she wanted to avoid feeling dissatisfied with her current situation. d. she wanted to stave off the unknown of the future.

It is logical to infer that Mrs. Sommers avoided "such morbid retrospection" because a) she wanted to stay focused on her daily activities.  

Explanation:  

In the short story ‘The Silk Stockings’ by Kate Chopin, Mrs. Sommers was a one-time rich lady born into a poor family where she had to do all her household chores and look after her children.

Though she had seen better days as per her neighbors, but then she didn’t go into any morbid retrospection as she didn’t want to think of her past days as that wouldn’t help her at all in her present life. She wanted to work hard and spend money on her family and that too economically. So option a is the right answer.  

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.