What is clock speed of the AGPx8 expansion slot?

A.
66 MHz

B.
133 MHz

C.
266 MHz

D.
533 MHz

Explanation:
The AGPx8 has a clock speed of 533 MHz and has a transfer rate of about 2.1GB/s.
Incorrect Answers:
A: The original specification for AGP (AGPx1) has a clock speed of 66 MHz.
B: AGPx2 has a clock speed of 133 MHz.
C: AGPx4 has a clock speed of 266 MHz.
Reference:James G. Jones and Craig Landes, A+ Exam
Cram 2 (2nd Edition), QUE Publishing, Indianapolis, 2003, p. 236.