Which of the Following Statements About Potential Health Benefits of Relationships

Which of the following statements about potential health benefits of relationships is true, according to the text?

A) People with more social contacts put themselves at greater risk for illnesses like a cold.
B) People with strong social networks are more than twice as likely to survive a heart attack.
C) A lack of social relationships increases the risk of mortality, but not on the same level as smoking, heart disease, or obesity.
D) When friends share their problems with us, this behavior increases our stress and can actually make us less healthy.