What is the correct way to write the quotation part of the sentence?

my "mother-in-laws" blueberry pie won first place at the county fair.

a - mother-in-laws'
b - mother's-in-law
c - mother-in-law's
d - mothers'-in-law

This excerpt is repeated several times. what effect does this repetition have on the epic

Boss: oh no! that’s the phone again! secretary: blank boss: . a. shall i take it? b. will you answer it? c. can you do me a favor? d. may i hang it up?

Have you ever contributed to “social media outrage” (using your social media accounts to boost the anger about a contemporary issue by forwarding it, liking it, etc.) without stopping to think who might’ve originated the message or what the originator’s motives might’ve been? provide example.