What triggers activation of protoxin to active $Bt$ toxin of Bacillus thuringiensis in bollworm?

Which of the following is commonly used for the transfer of foreign $DNA$ into crop plants?

Consider the following statements about the responsibility of $GEAC$ (set up by the Indian Government):
$I$. $GEAC$ makes decisions regarding the validity of $GM$ research.
$II$. It checks the safety of introducing $GM$ organisms for public services for their large-scale use.
Which of the statements given above is/are correct?

Select the incorrect match.

What is the full form of $GEAC$?

What is the toxic protein produced in $Bacillus \text{ } thuringiensis$ called?