The question asks about the direction of magnetic field lines surrounding a current-carrying wire.

Option 1 states that the direction of the magnetic field lines is clockwise. This means that if we imagine looking at the wire from above, the magnetic field lines would appear to form a clockwise loop around the wire.

Option 2 states that the direction of the magnetic field lines is anti-clockwise. This means that if we imagine looking at the wire from above, the magnetic field lines would appear to form an anti-clockwise loop around the wire.

Option 3 states that the direction of the magnetic field lines is into the page. This means that if we imagine looking at the wire from above, the magnetic field lines would appear to point towards the plane of the page.

Option 4 states that the direction of the magnetic field lines is out of the page. This means that if we imagine looking at the wire from above, the magnetic field lines would appear to point away from the plane of the page.

The correct answer is option 1, which states that the direction of the magnetic field lines is clockwise. This is based on the right-hand rule, where if the direction of current flow is downward or into the page, the magnetic field lines wrap around the wire in a clockwise