Which of the Following Is a Similarity Between Jainism and Sikhism

Which of the following is a similarity between Jainism and Sikhism?

A) Both religions have close connections with Christianity.
B) Both accept the telling of falsehood and exaggeration when meant humorously.
C) Both stress the importance of an individual's struggle to purify the self, to act morally, and to do good to others.
D) Both embrace strict vegetarianism and reject the use of animal products such as leather, feathers, and fur.