单选题 The experienced climber was________ the potential danger in such extreme weather and decided to wait until the following day. A completely blind to B totally lost in C pretty keen on D well aware of

The correct answer to the question is A, "completely blind to." This phrase means that the experienced climber did not recognize or understand the potential danger in the extreme weather conditions and therefore decided to postpone the climb until the next day. The other options do not fit the context of the sentence: "totally lost in" implies being deeply engrossed in something, "pretty keen on" suggests a strong interest or enthusiasm, and "well aware of" means being fully conscious or knowledgeable about something, which would not make sense in the context of the climber deciding to wait due to danger.1345678