| In comparing a semiconductor diode to a vacuum tube diode, which statement is true? |
| A) The semiconductor diode is smaller in size, has no warm-up time, and is less reliable than the vacuum tube diode. |
| B) The semiconductor diode is smaller in size, has significant warm-up time and is more reliable than the vacuum tube diode. |
| C) The semiconductor diode is larger in size, has no warm-up time and is more reliable than the vacuum tube diode. |
| D) The semiconductor diode is smaller in size, has no warm-up time and is more reliable than the vacuum tube diode. |
