accessories not installed by the original equipment manufacturer (oem) can be difficult to diagnose for all…

accessories not installed by the original equipment manufacturer (oem) can be difficult to diagnose for all of the following except:\n\n a. service information may be lacking.\n b. lack of knowledge about the product.\n c. knowledge of how they work may be missing.\n d. the warranty may have expired.

accessories not installed by the original equipment manufacturer (oem) can be difficult to diagnose for all of the following except:\n\n a. service information may be lacking.\n b. lack of knowledge about the product.\n c. knowledge of how they work may be missing.\n d. the warranty may have expired.

Answer

Brief Explanations:

The expiration of a warranty has no direct relation to the difficulty of diagnosing non - OEM accessories. Lack of service info, product knowledge, and knowledge of how they work can make diagnosis hard.

Answer:

D. The warranty may have expired.