To convert microseconds to nanoseconds: a. Take the reciprocal of the number of microseconds. b. Multiply the number of microseconds by 0.001. c. Multiply the number of microseconds by 0.000001. d. Multiply the number of microseconds by 1,000. e. Multiply the number of microseconds by 1,000,000.

D. Multiply the number of microseconds by 1,000.

Explanation:

In order to convert microseconds to nanoseconds, it should be noted that one should multiply the number of microseconds by 1,000.

For example, if we want to convert 12 microseconds to nanoseconds. This will be:

= 12 × 1000

= 12000 nanoseconds.

Therefore, with regards to the information given above, the correct option is D.

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