When directed by the the attorney general shall assist any district attorney in the discharge of the duties of the district attorney. a. code of criminal procedure
b. governor
c. select committee on criminal law
d. state legislature

b. governor

Explanation:

The duty of the attorney general is to ensure that the state laws are enforced. as they are the chief legal officers in the state. They may be appointed by the governor of the state, although the majority of attorneys general are elected.

A district attorney serves the same purpose in a district or a county. Together, they prosecute as the legal arm of the government.  There is a statutory provision that allows the attorney general, with the approval of the governor or when directed by the governor, to assist a district attorney in his/her duties when there is an issue concerning public safety or public justice.

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