Answer: Option C
Step-by-step explanation:
Dan experiences this kind of a situation every time he visits the doctor for his session. There is a valid anger because nobody is having extra time in their life, if other's session takes time then the doctor must allot some other time to Dan.
But the doctor does not provides any other slot to Dan she call him at the same time and because of somebody else he gets late.
Hence, the correct answer is option C.