The answer is: C) Hugging someone who is crying.
Someone can show nurturing behavior in many kind way's, such as hugging someone who is crying or helping someone when they fall.
Explanation:
A) Letter a child search for their own food: A mother/father/guardian should prepare food for their child.
B) Pretending to be happy: Pretending too be happy isn't a good way too show nurturing behavior.
C) Hugging someone who is crying: Hugging someone who is crying is the best way too show nurturing behavior, which would make C the correct answer.
D) Dealing with life's challenges alone: Dealing with challanges alone isn't a great way too show nurturing behavior, when you are dealing with life problems reach out too someone that could help you!
I hope this help's! :)
-LizzyIsTheQueen