Definition: You are given a question on human aging. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: The model of social support that says that those who are close to you now are likely to be close for the rest of your days is called the ____ model
(A)Consistency (B)Convoy (C)Attachment (D)Train

B