In the following question, a sentence is provided with one part highlighted in bold. The bold part may or may not contain an error. The options given below can replace the highlighted part. Choose the option that correctly replaces the erroneous phrase. If the sentence requires no change, select 'No replacement required' as your answer.

Do not let your failures to shake your resolve.

The correct answer is shake your.

Explanation:
In English grammar, the verb "let" acts as a causative verb. When followed by an object, it requires a bare infinitive (the base form of the verb without the preposition "to").
The correct grammatical rule is:
let + object + bare infinitive (base form of verb)

In the given sentence, "your failures" is the object. Therefore, using "to shake" is incorrect because the preposition "to" must be omitted after "let".

Correct Sentence:
Do not let your failures shake your resolve.