Step 1: Identify subject.
"The women" is plural.
Step 2: Choose correct verb.
Plural subject → plural verb = "are."
Step 3: Eliminate options.
(A) is – singular, incorrect.
(B) were – past tense, but sentence implies present.
(D) had – past perfect, not suitable.
Identify the part of the sentence that contains a grammatical error:
Each of the boys have submitted their assignment on time.