受到不可抗力事件影响的本合同规定之义务的履行时间应予延长，延长时间相等于该不可抗力事件所导致的延误时间。The time for performing the obligations ________ specifically prevented from performance by such event of force majeure shall be extended by a period equal to the period of delay caused by such event of force majeure.
A、herein
B、hereafter  
C、hereunder 
D、hereinafater