Explanation:

- The current (\(I\)) in a wire is given by Ohm’s law: \(I = \frac{V}{R}\), where \(V\) is potential difference and \(R\) is resistance.

- Resistance of the wire (\(R\)) is proportional to its length (\(R = \rho \frac{l}{A}\)), where \(l\) is length, \(\rho\) is resistivity, \(A\) is cross-sectional area.

- If length is halved, resistance becomes half.

- For the same \(V\), lowering \(R\) to half will *double* the current: \(I = \frac{V}{R/2} = 2 \frac{V}{R}\).

- So, current is doubled.

Options:

- Option 1:  be doubled (Correct)

- Option 2: be halved (Incorrect, happens if resistance increased)

- Option 3: remain unchanged (Incorrect, only true if resistance is unchanged)

- Option 4: become zero (Incorrect, only if circuit is open)