Semiconductor devices: A. are less reliable than electro¬mechanical components B. usually have a very short MTBF (mean time between failure) C. have a very short infant mortality period D. All of the above E. None of the above

The correct answer is: E. None of the above

Semiconductor devices are not less reliable than electromechanical components. In fact, they are often more reliable, due to their smaller size and simpler construction. Semiconductor devices also have a longer MTBF (mean time between failure) than electromechanical components. The infant mortality period is the period of time after a device is manufactured during which it is more likely to fail. This period is typically very short for semiconductor devices, and it is usually over within the first few hours or days of operation.

Here are some additional details about each option:

• Option A: Semiconductor devices are not
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