Continuing review of an approved and ongoing study posing more than minimal risk that was initially approved by a convened irb:
a. is limited to review of unanticipated problems.
b. is not required unless additional risks have been identified.
c. must occur within 12 months of the approval date.
d. must be conducted by a convened irb.

C. Must occur within 12 months of the approval date.

Explanation:

Whenever a sociological, scientific, political, or any other field study is conducted, the authors of this study submit it for publication so that the results can be disseminated and the study can be performed by other interested persons. Prior to publication, the study will be reviewed by the institutional review committee, also known as IRB, which will ensure that the study meets the ethical and moral standards of a research. If the IRB considers the study to be appropriate against these standards, the study is released for publication. Once released, the study must undergo a continuous review within 12 months from the date of approval.

abraham lincoln issued the preliminary emancipation proclamation on september 22nd, 1862. it stipulated that if the southern states did not cease their rebellion by january 1st, 1863, then proclamation would go into effect.