Identify the segment in the sentence, which contains the grammatical error.
Security firms would get prosecuted for a breach of their duty if they do not introduced adequate procedures to protect children from harm.

Options

A. would get prosecuted
B. for a breach of their duty
C. to protect children
D. do not introduced

Answer

D

Explanation

The given sentence is in the present tense and talking about some future consequences so it will have a verb in its base form(introduce) and not in the past simple form( introduced). Hence, do not introduce. will be answer.