Which of the following devices is MOST likely to outperform a 15,000 rpm SAS hard drive in read speed?

Which of the following devices is MOST likely to outperform a 15,000 rpm SAS hard drive in read
speed?

A.
Compact flash

B.
SSD

C.
Tape

D.
SD

Explanation:

http://www.8088.net/blog/index.php/2011/01/24/iops-comparison-solid-state-drive-ssd-15000-7200-5900-5600-rpm/?lang=en