Which Statement Is True About Sibling Relationships in Middle Adulthood

Which statement is true about sibling relationships in middle adulthood?

A) As siblings grow older, good relationships often get worse and poor relationships get better.
B) For most people, sibling contact and support increases steadily from early to middle adulthood.
C) Despite reduced contact, many siblings feel closer in midlife, often in response to major life events.
D) Most adult siblings report getting together or talking on the phone at least weekly.