I had wanted to clean out the basement ______, but unfortunately he came back before I did it. [ ]

A. in a hurry

B. in his absence

C. in his memory

D. in his company

据《GB/T13035-2008带电作业用绝缘绳索》，常规型绝缘绳索工频干闪试验前，应将试样放在50℃干燥箱内进行（）的烘干，然后自然冷却（），防潮型绝缘绳索可在自然环境中取样，在规定的试验环境中进行试验。

A.1.5h；5min

B.1h；10min

C.1.5h；10min

D.1h；5min