单选题：A Prior to voicemails, the expectation of callers was to get

A Prior to voicemails, the expectation of callers was to get caught up in a process that can best be described as message-slip phone tag.
B When voice mail first appeared, however, that expectation was suddenly shaken by an invitation to leave a personal recorded message.
C It is rare for anyone to exceed expectations unless they do so on purpose.
D It is a proactive effort that is always looking for a way to express itself.
E The latter is in fact mediocrity, and mediocrity is usually the norm.
F As our experience changes, our expectations change, too.
G Typically, the message slips merely reflected the name and number of the caller, and the reason for their call was fairly short and cryptic.
根据以上选项，回答问题。
请回答（8）题。