Based on this excerpt from ARABY he have difficulty remembering why he came because he was rushed and overwhelmed. He cannot remember or he was having a difficulty to remember why he came because he was overwhelmed an rushed. The answer in this question is He was rushed and overwhelmed.
The correct answer is
<span>D. "So-called anonymous tracking is not very secure-the anonymity is fairly easily broken. Cracking [it]...is a fairly easy engineering feat.</span>
<span>the word is "vocabulary"</span>
An assistant as i got it and however is used to express contradiction