More than one rhythm played or performed at the same time is called.

polyphony

Explanation:

polyphony (noun; polyphonic = adjective): two or more parts sung or played simultaneously. heterophony (noun; heterophonic = adjective): multiple voices singing a single melodic line, but with. simultaneous melodic variants between the singers.

the answer to your question is d. any light source appearing in a scene

explanation:

cad, or computer-aided design and drafting (cadd), is a software for design and technical documentation, which is an automated process as opposed to the manual drawing of plans. this gives a person an advance in making plans as an architect in a short period of time. one who can render plans through this software will gain a skill that is better than one who makes plans manually. this is a skill some companies look for in an employee.