Answer:
The correct answer is B difficult to lose but easy to move.
Step-by-step explanation:
Metals are chemical substances in which the electrons of the outer orbital or valence orbital are hold very tightly through intramolecular attraction by the nucleus present in the center of the atom of the metal.As a result it is very difficult to remove electron from the valence orbital of metal.
As electrons are hold very tightly by the nucleus of a metal,the electrons are present in very compact manner within metal which helps metal to be an excellent conductor.