This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
A 22 years old primigravida presents with suicidal tendency and severe depression in the 1st trimester. Treatment of choice is: 
Select and explain. 
A. Electroconvulsive therapy, B. No treatment is necessary, C. Imipramine, D. Lithium
A: Electroconvulsive therapy
Answer: A: Electroconvulsive therapy 
Explanation: (Refer: Kaplan & Saddock's  CTP P.3290 chap. 31.34a)
(Refer: The Maudsley Prescribing Guidelines 11th Ed  In Psychiatry Chap .7 P.430)
Since, It is a Primigravida with suicidal tendencies here the therapeutic effect has to be immediate . considering the risk of suicide, medications in first trimester ECT is preferred over others