Assume a cache hit costs 1 ns of delay and a cache miss costs 100 ns of delay.

a. 2 points What cache hit rate is required to achieve an average access time of 1 ns
b. 2 points What cache hit rate is required to achieve an average access time of 3 ns
c. 2 points What cache hit rate is required to achieve an average access time of 5ns
d. 4 points What cache hit rate is required to achieve an average access time of 50 ns
e. 2 points What cache hit rate is required to achieve an average access time of 100 ns.