Some pars of the sentences have error and some are correct. Find out which part of a sentence has an error and blacken the circle corresponding to the appropriate correct option. If a sentence is free from error, blacken the circle corresponding to ..No error.. option in the Answer Sheet
A study is going underway to determine the exact concentration of lead in the water supply.

Options

A. to determine the exact concentration
B. No error
C. of lead in the water supply
D. A study is going underway

Answer

D

Explanation

Here, A study is underway is the right usage. The use of going is superfluous.