One mole of an ideal gas is expanded reversibly and isothermally from 1 litre to 10 litre at 300K. Correct relation among the following is

• A

  $\mathrm{W}=\mathrm{q}=∆\mathrm{E}\ne 0$

• B

  $\mathrm{W}=\mathrm{q}=0;∆\mathrm{E}\ne 0$

• C

  $\mathrm{W}=\mathrm{q}\ne 0;∆\mathrm{E}=0$

• D

  $\mathrm{W}=\mathrm{q}=∆\mathrm{E}=0$