Which one of the following is NOT a unit of magnetic field strength?

Which one of the following is NOT a unit of magnetic field strength?

Tesla
Gauss
Ampere - metre
Ampere/metre
This question was previously asked in
UPSC Geoscientist – 2020
Ampere – metre (A·m) is NOT a unit of magnetic field strength.
Magnetic field strength can refer to magnetic flux density (B), measured in Tesla (T) or Gauss (G), or magnetic field intensity (H), measured in Amperes per metre (A/m). Ampere – metre (A·m) is the unit for magnetic dipole moment.
Tesla (T) is the SI unit for magnetic flux density (B). Gauss (G) is the CGS unit for magnetic flux density (1 T = 10^4 G). Ampere/metre (A/m) is the SI unit for magnetic field intensity (H). Magnetic field strength (H) and magnetic flux density (B) are related by the magnetic permeability of the medium ($B = \mu H$). Magnetic dipole moment (m) is a measure of the magnetic strength and orientation of a magnet or magnetic source.