$5 \ mol$ of an ideal monoatomic gas is compressed isothermally from $(40 \ L, 5 \ bar)$ to $4 \ L$. The magnitude of maximum work done on the gas in this compression is

• A
  $5 \times 8.314 \times T \times \ln(10) \ J$
• B
  $5 \times 0.08314 \times T \times \ln(10) \ J$
• C
  $5 \times 5 \times \ln(10) \ L \cdot bar$
• D
  $5 \times 5 \times \ln(10) \ bar \cdot L$