Identify the art form being discussed

Oliver is out on location for a photo shoot. he prefers working with natural light. he has, however, realized that direct light is falling on the subject. how can oliver soften the natural light?

According to the article in wiki answer, digital communication systems have more benefits than analog systems. they are faster and more flexible, and they offer better performance than analog communication

Is the classification for an instrument that produces sound by vibrating a string or strings stretched between two points