Yea it was today because of the date and time and the molecules
C.
repertoire
a "collection," so to speak
A chronologically orders events and information and is the most linear option.
A: Mom and her sisters have decided to go on a trip together
for B it should be: His uncles and my brother were going on a camping trip
for C: the wording is just funky.
for D it should be: Both Natalia and Mike have invited us over
Hopefully this helps and good luck.