Given below are two statements:Statement I: Consider $20$ bit 'Branch' microinstruction code format given below:

F1	F2	F3	CD	BR	AD
$3$ bits	$3$ bits	$3$ bits	$2$ bits	$2$ bits	$7$ bits

$F1,F2,F3$: Micro-operation fields$CD$: Condition for branching$BR$: Branch field$AD$: Address fieldStatement II: Instruction represented in above format can perform branch in $4$ conditions.In the light of the above statements, choose the most appropriate answer from the options given below:

Statement I gives the format of a branch microinstruction.

The total number of bits in the format is:

$3+3+3+2+2+7=20$

So, the given format is a $20$ bit microinstruction format.

Therefore, Statement I is correct.

Now check Statement II.

The field $CD$ is used for condition selection in branching.

Size of $CD$ field is:

$2$ bits

With $2$ bits, the number of possible conditions is:

$2^2=4$

So, the instruction represented in this format can perform branching based on $4$ possible conditions.

Therefore, Statement II is also correct.

Hence, both Statement I and Statement II are correct.