Read the passage, then answer the question that follows. scientists have studied the benefits of hobbies having a pastime reduces stress. it can improve mood, memory, and strengthen friendships. relaxing hobbies such as knitting or bird-watching reduce cortisone, the stress hormone. some hobbies, such as sports and clubs, encourage friendships, and numerous studies have found a connection between relationships and happiness. which revision best corrects the underlined sentence? scientists have studied the benefits of hobbies. having a pastime reduces stress. scientists have studied the benefits of hobbies, having a pastime reduces stress. scientists have studied the benefits of hobbies, but having a pastime reduces stress. scientists have studied the benefits of hobbies; however, having a pastime reduces stress.