Consider a memory system with memory allocated as shown below.

Suppose the following actions occur in order:

Process $E$ starts and requests $300$ memory units.

Process B exits.

Process $F$ starts and requests $800$ memory units.

Process $C$ exits.

Process G starts and requests $900$ memory units.

Which of the following will be the correct scenario for process $G?$

a$.$ Using best$-$fit dynamic contiguous allocation, the starting address of process $G$ is

$2400$

b$.$ Using best$-$fit dynamic contiguous allocation, the starting address of process $G$ is

$1200$

c$.$ Using best$-$fit dynamic contiguous allocation, the starting address of process $G$ is

$1900$

d$.$ Using best$-$fit dynamic contiguous allocation, the starting address of process $G$ is

$1600$