Consider the following sequence

add $16, $1, $3

andi $12 , $16, 8

or $13, $6, $16

sub $14, $16, $12

sw $15, 100($16)

Identify the data hazards present in the sequence:

sub uses $16 before add writes it.

andi writes $12 after sub uses it.

andi writes $12 after sub uses it.

add writes $16 after andi uses it.

sub uses $12 before andi writes it.

add writes $16 before sub uses it.

or uses $16 before and writes it.

add writes $16 after sw uses it.