The following sentence has been split into four segments. Identify the segment that contains a grammatical error and select the option which rectifies that error.
A lot of adulterants / are chemicals that can lead / to an range of health problems / in both children and adults.

Correct option is D

Option (d) contains the error.
Correct sentence: A lot of adulterants are chemicals that can lead to a range of health problems in both children and adults.
Explanation:
· The article ‘an’ is used before vowel sounds, but “range” starts with a consonant sound.
· Therefore, the correct article is ‘a’ not ‘an’.
Grammatical Rule Used:
Use “a” before words starting with consonant sounds, and “an” before vowel sounds.
Example: a book, an orange