Margie, age 65, describes her 40-year marriage to Jim: "For the first few years, it was wonderful. We were so in love. Then during the next decades things became rockier, but after the kids left the house we really fell in love again." Margie and Jim's marriage is:A. fairly typical. B. fairly unusual. C. destined to get much worse when Margie and/or her husband become ill. D. destined to fall apart in the old-old years.