Answer:
I think it is Dangerously
I would give you a better answer if I could see the paragraph, but my best guess is that productive means producing or able to produce large amounts of goods, crops, or other commodities. Also, achieving or producing a significant amount or result or producing or giving rise to.
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.
