Bt cotton is not
plants have been developed. One such plant is Bt cotton in which the
Bt toxin has been used as a biological insecticide. The
bacterium -Bacillus thuringiensis is common soil bacteria
which produces a protein toxin that kills certain insects. Bt toxin
gene was isolated from Bacillus thuringiensis and was
incorporated into several crops plants such as cotton. Bt cotton is
resistant to insect but is not pesticide resistant.
So, the correct answer is 'Resistant to all pesticides'.