If im not mistaken it should be A
A. Climax, where the story reaches the highest point of tension or interest
The 7 deadly sins are as follows: envy, pride, sloth, anger, greed, gluttony and lust. They connect to "an inspector calls" because each of the characters represents one or more of these sins. For example Mr birding is greed because he is always in search for more money.
That someone’s watching her