what is the approximate bandwidth as a percent of the total bandwidth?

On SPARC T4-2 server, if the memory riser has four dual-rank DIMMs, its bandwidth is
approximately 94% of the possible maximum. If the memory riser has only two dual-rank DIMMs,
what is the approximate bandwidth as a percent of the total bandwidth?

A.
29%

B.
35%

C.
41%

D.
47%