Question

what is the best definition of the phrase a bone of contention?
the decision to sell the property was a bone of contention among the family members.
small part of the whole
source of satisfaction
stimulating experience
reason for a quarrel

Explanation:

The example sentence shows the property sale decision caused conflict among family members. Analyzing the options, only "reason for a quarrel" matches the context of a divisive issue that causes disagreement.

Answer:

reason for a quarrel