The correct option is B
2 only
Explanation:
Statement 1 is incorrect: As per Article 126 of the Constitution, the President can appoint a judge of the SC as acting CJI when the CJI is absent, his office is vacant or he/she cannot perform his duty.
Statement 2 is correct: As per Article 127 of the constitution, in case of lack of quorum in the SC, CJI, in consultation with the Chief Justice of a high court and with previous consent of the President can appoint a judge of that high court as an Ad-hoc Judge to SC.