When installing PCI cards, and the PCI slot supports 3.3 volts, which of the following can you install?

A.
A 3.3v card

B.
A 5v card

C.
A dual-voltage card tat supports support both 5 volts and 3.3 volts.

D.
All of the above

Explanation:
You can install a 3.3v card or a dual-voltage card that supports both 5 volts and 3.3 volts in the PCI slot.
Incorrect Answers:
B, D: A slot that supports 3.3 volts cannot take a 5v card.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 405-406.