What is the function of the following LC$-3$ instructions?

$1001010010111111$

$0001010010100001$

$0001011011000010$

Question $2$ Select one:

a$.$

They compute R$3+$ R$2+1$ and store the result in R$3$

b$.$

They compute R$3-$ R$2$ and store the result in R$3$

c$.$

They compute R$2-$ R$3$ and store the result in R$3$

d$.$

They compute R$3-$ R$2$ and store the result in R$2$