Choose the correct option to fill in the blanks in the following question :
The plan will be sanctioned _____ a fortnight.

Question

Accepted Answer

The correct option is **3. within**.

**Explanation:**

*   **Why "within" is correct:** "Within" indicates that something will happen inside a specific time period. In this case, "within a fortnight" means the plan will be sanctioned sometime *during* the next two weeks (a fortnight). It sets a time limit or deadline for the sanctioning.

*   **Why the other options are incorrect:**

*   **1. in:** "In a fortnight" is grammatically acceptable, but it usually implies a point in time *after* the fortnight has passed. It suggests the sanctioning will happen *at the end* of the fortnight, rather than sometime during it. "Within" is more precise in indicating the action will occur *during* the specified period.

*   **2. by:** "By a fortnight" would mean the plan will be sanctioned *no later than* a fortnight from now. While this is similar in meaning to "within," "within" is a more natural and common way to express that something will happen during a period of time. "By" often implies a deadline or latest possible time.

*   **4. for:** "For a fortnight" indicates a duration of time. It doesn't make sense in this context because it doesn't describe when the plan will be sanctioned. It would be used to describe how long something lasts, not when it will happen. For example, "The plan will be reviewed for a fortnight."