Latent fingerprints are invisible to the naked eye and require special techniques, such as dusting powders, chemical reagents, or light sources, to make them visible. They are formed by the natural oils and sweat from the skin and are commonly found at crime scenes.
Europium (Eu) resembles Calcium (Ca) in the following ways:
(A). Both are diamagnetic
(B). Insolubility of their sulphates and carbonates in water
(C). Solubility of these metals in liquid NH3
(D). Insolubility of their dichlorides in strong HCI
Choose the correct answer from the options given below: