Improve the underlined phrase in the following sentence with the help of given…

Correct choice: next Saturday at the latest

Why this is correct:

• The phrase places the time expression "next Saturday" followed by the idiomatic postmodifier "at the latest," which clearly indicates a deadline (no later than that day).

• An alternative correct form is "by next Saturday," which also expresses the same deadline.

Why the other choices are incorrect or problematic:

• "latest next Saturday" is ungrammatical because the adjective "latest" cannot precede the time expression in this way; the idiom requires "at the latest" after the time or "by" before it.

• "latest by Saturday next" is awkward and nonstandard: the word order is incorrect and "Saturday next" is an uncommon phrasing. Prefer "by next Saturday" or "next Saturday at the latest."

• A repeated identical option is redundant; while the phrase itself is correct, duplicates should be avoided to prevent confusion.

Tip: Use "by next Saturday" or "next Saturday at the latest" to state a clear deadline.