Identify the sentence that has correct subjectdash–verb agreement.
a. There is your keys. They is on the desk.
b. There is your keys. They was on the desk.
c. There are your keys. They are on the desk.
d. There are your key. It is on the desk.
A is wrong you wouldn't say "is" you would say are. B is wrong to because "was" is not the correct verb to use. D is wrong because key, should be plural, keys C is correct, because it has subject and verb agreement.
