A : Charge cannot exist without mass but mass can exist without charge.
B : Charge is invariant but mass is variant with velocity
C : Charge is conserved but mass alone may not be conserved.

Given Data: Three statements are given.

Concept Used: Conservation of mass and charge

Detailed Solution:

1). Charged body has electrons which has mass whereas a body (with mass) can be chargeless.

2). According to Einstein’s equation, when a body is travelling at speed comparable to speed of light, its mass changes as:

${\mathrm{m}}_{\mathrm{f}}=\frac{{\mathrm{m}}_{\mathrm{i}}}{\sqrt{1-\frac{{\mathrm{v}}^2}{{\mathrm{c}}^2}}}$

So, mass is variant.

3). Charge is invariant. So, it is independent of velocity.

So, A, B, C are true