Direction: Spot the grammatical errors in the given sentence. Mark the part with error as your answer. If there is no error, mark "No error" as the answer. (Ignore punctuation error)

Though their qualifications span a diverse (a)/ range, there is an equal (b)/ number of graduates and those who have just completed school, each set (c)/ making up close to 30% of these households. (d)/ No error (e)

[RBI (GRADE B), 2011]