Read the following context and choose the best option to answer the question.
Context: Geoff could n't remember a damn thing . All he remembered was the drinking he had done . Lucian , who was still in shock , just sat in the bed upright , doing the same thing as Geoff .
Question: Why was Geoff feeling ill ?
Options: 
A. Geoff has been drinking heavily .
B. Geoff has been isolating too much .
C. Geoff has been too angry with others .
D. None of the above choices .


A