The answer is c.) doctor's
To show procession of the patients by the doctor add 's to the word doctor.
plot is complicated by supernatural beings or events and may involve a long and dangerous journey through foreign lands and the setting is in scope ususally involving more than one nation.
I’d write about how it started, how it impacted and changed the society
The correct use of the introductory comma in the sentence is a clause.
I believe that the description that fits the mood expressed in this excerpt best is B. afraid of this storm because it is one of the worst of all he has experienced.
He says that he has experienced many storms, but that none of them were anything like the one he is experiencing at this moment, and so he is afraid of it.