Which of the Following Is NOT True

Which of the following is NOT true?

A) India developed nuclear weapons in part because of electoral considerations.
B) India developed nuclear weapons after Pakistan did so.
C) India developed nuclear weapons in part because of tense relations with China.
D) Even though India has consistently violated nonproliferation norms since developing its arsenal, the country has recently pledged to prevent the proliferation of weapons of mass destruction.
E) India has refused to sign the Comprehensive Test Ban Treaty.