D. Mom should be capitalized because I believe it is a proper noun.
You can replace the word mom with a person's name. That is not always the case however. For example, I called my mom on my.... If you capitalized mom in this sentence and put a name then it wouldn't make sense because the word my was added. Hopefully this helps and makes sense. Good luck!!!
Mrs. Hale is the most sympathetic to Minnie Wright because she knows about Minnie's unhappy marriage to Mr. Wright. Her sympathy is also evident when Mrs. Hale asks Mrs. Peters to lie to Minnie about her preserves. Mrs Hale tells Peter, " If I was you, I wouldn't tell her her fruit was gone. Tell her it ain't. Tell her it's all right. Take this in to prove it to her. She—she may never know whether it was broke or not."
Is this short enough?
Efficacy means “capacity for producing a desired result or effect” so i believe the answer would be D.
hope this helps!!
