Conduction occurs when thermal energy is transferred by the movement of . a waves b molecules c liquids d fluids

In conduction mode of heat transfer the heat is transferred by the movement of medium molecules which collide with other.

As the molecules collide with each other they transfer their energy and hence energy is propagated from one point to other

here the energy propagation is very slow and it will be given in steady state by the following formula

here

K = thermal conductivity

A = crossectional area

= temperature difference of its two ends

L = length of medium

so here whole process is due to medium molecules

so correct answer will be

B. molecules

c) up is the direction the magnetic force is acting on the charge.