Answer:

In this case, the correct answer is option 'A', which is a mechanic. A mechanic is a person who repairs and maintains machines and devices like TVs, cars, and other mechanical systems. Let's discuss why the other options are not correct and why the correct option is 'A'.

Incorrect options:

b) Electrician: An electrician specializes in electrical systems and is responsible for installing, repairing, and maintaining electrical equipment, wiring, and circuits. While an electrician may also work with some devices like TVs, their primary focus is on electrical systems rather than mechanical systems.

c) Plumber: A plumber is a professional who deals with the installation, repair, and maintenance of water supply systems, drainage systems, and related fixtures. Plumbers work with pipes, valves, faucets, and other plumbing components. They do not typically repair machines or devices like TVs or cars.

d) Carpenter: A carpenter is a skilled tradesperson who works with wood and constructs, repairs, and installs wooden structures and furniture. While carpenters may work on some components of a car or TV that involve woodwork, their expertise lies primarily in carpentry rather than mechanical repairs.

Correct option:

a) Mechanic: A mechanic is a person who specializes in repairing and maintaining machines and mechanical systems. They are skilled in diagnosing and fixing issues with various devices, including TVs and cars. They have knowledge of how different mechanical components work, and they use tools and techniques to repair and restore functionality to these devices.

Mechanics have a thorough understanding of the mechanical systems involved in devices like TVs and cars. They can identify and fix problems related to engines, transmission, brakes, electrical systems, and other mechanical components. They may also perform routine maintenance tasks, such as oil changes, filter replacements, and system inspections.

In conclusion, based on the given options, a mechanic is the most appropriate answer for someone who repairs machines and devices like TVs and cars.