Read the passage carefully and answer the following questions:

Some people say that men’s desire for war is due to his fight for survival and that war is necessary to preserve his virility. Yet, war, nowadays leaves a legacy of the weakest men and stimulates not the noble but the bestial qualities of the mankind. Adventure of some kind is necessary for man; he will inevitably deteriorate physically, if his life is one of case lived in an atmosphere of luxury and ‘Safety first’. This is the real reason behind our love of sports in the chronic indigestion; a tramp with good innards is for happier. Nothing that money can buy is worthwhile without good health. There is no better way to perfect health and physical fitness than to walk over and climb hills and mountains. Mountains give us much more than physical fitness; they exercise the mental faculties as well. Climbing a high and difficult peak is as much mental exercise as a physical exercise. It calls for sense of judgment and planning and thinking ahead, for anticipating difficulties and dangers, for responsibility towards one’s companions, and best of all, it brings the mountaineer into touch with the beauties of the universe.

If a man lives in an atmosphere of luxury and ‘Safety First’, he will

improve mentally but deteriorate physically

The correct answer is OPTION 2 - improve mentally but deteriorate physically

The passage states that " Adventure of some kind is necessary for man; he will inevitably deteriorate physically, if his life is one of case lived in an atmosphere of luxury and ‘Safety first’. " This means that it's physical state will deteriorate but there is no mention of any deterioration of mental state. So the answer is improve mentally but deteriorate physically.