Hey there!
We are going to find which sentence carries the strongest noun, this would mean that we would have to find a sentence that would contain these aspect's
. . . ♦Person
♦Place
♦Or thing
Based on my understanding of your options, your best answer would be (Jim knew his wife would like tulips)
In this sentence, we are looking at the word (tulips), which this would be a noun and in this, it would be considered and (Thing).
Your correct answer would be . . . .
Hope this helps
~Jurgen