What is the full form of $GMO$?

Given below are two statements:
Statement-$I$: In $\text{pBR}-322$,the restriction site of $\text{BamHI}$ is present on the $\text{Ampicillin}$ resistance gene.
Statement-$II$: $\text{RNAi}$ technique was used in the formation of nematode-resistant plants.
In the light of the above statements,choose the correct answer from the options given below:

What happens in the $RNAi$ ($RNA$ interference) process?

Give information about pest-resistant plants. Explain $RNA$ interference.

In $BT$ cotton, what does $BT$ stand for?

$A$ transgenic crop that is resistant to hornworm larvae is