Answer :
A. "On the ledge, there are three potted geraniums that desperately need water. However, the hanging ferns in the living room are thriving."
The hanging ferns in the living room are thriving." The error in the original sentences is subject-verb agreement; "there is" should be "there are" to match the plural noun "geraniums."
Additionally, a comma is needed after "However" to separate the clauses properly. The sentence also requires correction in the use of punctuation and subject-verb agreement to ensure clarity and correctness.
The Complete Question
In the following sentences, identify and correct the errors related to subject-verb agreement and punctuation:
"On the ledge, there is three potted geraniums that desperately need water."
"However,the hanging ferns in the living room are thriving."
A. "On the ledge, there are three potted geraniums that desperately need water. However, the hanging ferns in the living room are thriving."
B. "On the ledge, there is three potted geraniums that desperately needs water. However the hanging ferns in the living room is thriving."
C. "On the ledge, there are three potted geranium that desperately need water. However, the hanging fern in the living room is thriving."
D. "On the ledge, there is three potted geraniums that desperately need water. However the hanging ferns in the living room is thriving."