Of the Following Couples,which Are Most Likely to See Health

Of the following couples,which are most likely to see health benefits such as reduced incidence of hypertension and arthritis and less likelihood of disability?

A) Mary and Jim,who have been together 15 years since their spouses died
B) Ababuo and John,who have been happily married since they met in the Peace Corps 30 years ago
C) Betty and Alan,both who are both 88 and are newlyweds of six weeks
D) Barbara and Baatarsaikh,unlikely lovers who met at a meditation retreat six years ago