| In comparing a semiconductor diode to a vacuum tube diode, what statement is true? |
| A) The semiconductor diode has longer life, no warm-up time, and is more delicate than the vacuum tube diode. |
| B) The semiconductor diode has longer life, longer warm-up time and is less delicate than the vacuum tube diode. |
| C) The semiconductor diode has shorter life, no warm-up time, and is less delicate than the vacuum tube diode. |
| D) The semiconductor diode has longer life, no warm-up time, and is less delicate than the vacuum tube diode. |
