Each of the following sentences in this section has a blank space with four words or group of words given. Select whichever word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.
Whenever i go to bank , i feel scared . As for the manager the sight of him terrifies me and makes me want to runaway as fast as i can .As soon as I open the door of the bank I lose my head and when I try to do any thing there, I behave like an idiot. I cannot explain ___________ for this but that is how it is.
Fill the blank

Options

A. the reasons
B. the responses
C. the answers
D. the causes