Academic Writing Directions: Use Your Knowledge of Writing, Editing, and the Conventions of the Conventions

Academic Writing Directions:
Use your knowledge of writing, editing, and the conventions of grammar to answer the following questions.
All of the following sentences have correct subject and verb agreement except​

A) ​I am willing to work with a tutor in order to pass calculus.
B) ​You was supposed to meet me in the cafeteria after your class.
C) ​They were given extra time to complete the assignment by their professor.
D) ​He was taken to the emergency room after complaining of pain in his arm.