Question

engineers rely on ____ to help them conduct research, test machines and components, and design new devices.
a entrepreneurs
b professionals
c technicians
d consultants

Explanation:

Technicians have the practical - skills and knowledge to assist engineers in research, testing of machines and components, and new device design. Entrepreneurs focus on business - related aspects, professionals is a broad term not specific to this support role, and consultants provide advice rather than hands - on assistance in these tasks.

Answer:

C. technicians