Athlete's foot can be transmitted by contact with an infected person or surface. So the correct option is (b).
Tinea pedis, another name for athlete's foot, is an infection brought on by the fungus trichophyton. The fungus may begin to develop and spread when it comes into touch with your skin. Athletes who frequently use showers and locker rooms are more likely to contract the illness that is known as "athlete's foot."
The skin's surface may become red and itchy as a result of athlete's foot. Additionally, it might cause skin breaks and abrasive sores. As often as you can, let the feet air out and breathe. Apply an anti-fungal powder to your feet, especially after exerting yourself and perspiring a lot. Never use a shared towel and avoid wearing socks inside your home.