What accurately describes a use case for Database/Analytic environments?

A.
High, small block random I/O activity. Application environments that require very low and
consistent response times.
B.
Low, small block random I/O activity. Application environments that tolerate high
response times.
C.
High, large block sequential I/O activity. Application environments that require very low
and consistent response times.
D.
Low, small block sequential I/O activity. Application environments that requires very low
and consistent response times.
Explanation: