Pick the correct option.

The correct answer is Option (4) → Both (1) and (2).

Option (1) All electrons have a magnetic moment. — Incorrect. The statement is true, because every electron carries an intrinsic magnetic moment. But it is only one of the two true statements, so this option alone is incomplete.

Option (2) All protons have a magnetic moment. — Incorrect. Every proton also carries an intrinsic magnetic moment, so the statement is true. Still, it leaves out the true statement about electrons.

Option (3) All magnetism is due to circulating currents only. — Incorrect. Ampere suggested that all magnetism comes from circulating currents. This is only partly true. The intrinsic magnetic moment of an electron or a proton does not come from circulating currents.

Option (4) Both (1) and (2). — Correct. Elementary particles such as the electron and the proton each carry an intrinsic magnetic moment, so statement (1) and statement (2) both hold.

NCERT (2026-27):
Circular Current Loop as a Magnetic Dipole – “We have shown that a current loop (i) produces a magnetic field … and behaves like a magnetic dipole at large distances, and (ii) is subject to torque like a magnetic needle. This led Ampere to suggest that all magnetism is due to circulating currents. This seems to be partly true and no magnetic monopoles have been seen so far. However, elementary particles such as an electron or a proton also carry an intrinsic magnetic moment, not accounted by circulating currents.”