Which of the following complex ion of Ag cation have correct indicated properties, where L is a weak monodentate neutral ligand?

${\left[{\mathrm{AgL}}_4\right]}^{+}$ is not tetrahedral and paramagnetic because it has not a central atom surrounded by four other atoms and materials that tend to get weakly magnetized in the direction of the magnetizing field when placed in a magnetic field.

Hence, options A, C and D are correct.