Which of the following statements regarding static RAM (SRAM) and dynamic RAM (DRAM) is TRUE?

A.
The data stored in Static RAM (SRAM) must be refreshed at regular intervals.

B.
Static RAM (SRAM) store data in IC transistors and can retain the data as long as power to the memory chips is maintained.

C.
Static RAM (SRAM) is much cheaper but also much slower than Dynamic RAM (DRAM).

D.
Static RAM (SRAM) can store approximately 75% less data than Dynamic RAM (DRAM) of the same size and is cheaper than Dynamic RAM (DRAM).

Explanation:
Static RAM (SRAM) uses IC transistors to store data, and is capable of maintaining it as long as power is supplied to the chip.

Incorrect Answers:
A: Static RAM (SRAM) stores data for as long as power to the memory chips is not interrupted and does not need refreshing.
C: Static RAM (SRAM) is much faster than Dynamic RAM (DRAM) but is more expensive than DRAM.
D: Static RAM (SRAM) can store approximately 75% less data than Dynamic RAM (DRAM) of the same size, and is more expensive than DRAM.
References:

Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 89-90.