Select the most appropriate option that can substitute the highlighted segment in the given sentence.
Their was a large snake found in the garden last evening.

Correct option is A

The correct substitution of the highlighted words is (a) "There was a large snake."
Error identification: "Their" is incorrect; "there" is correct.
Grammatical Rule used: Use "there" to indicate the existence of something.
Corrected sentence: There was a large snake found in the garden last evening.