In the following scenario, which friend has offered the best advice?Margot, fifty-four, confesses to her girlfriends that, while her marriage seems strong, sexual dysfunction has become a problem.Natalie suggests that Margot get a new hairstyle and take more care with her appearance—men in longstanding relationships often lose interest.Catherine says, “Oh no, I hope he is not having an affair. You need to pay more attention to his activities, especially when he comes home late.”Jean says it is to be expected — after all, her husband is fifty. By sixty, sexual intimacy is usually a thing of the past.Terry says maybe a visit to the doctor would be in order.