An ideal gas undergoes an isobaric compression and then an isovolumetric process that brings it back to

Question:

An ideal gas undergoes an isobaric compression and then an isovolumetric process that brings it back to its initial temperature. Had the gas undergone one isothermal process instead,
(a) The work done on the gas would be the same.
(b) The work done on the gas would be less.
(c) The work done on the gas would be greater.
(d) Need to know the temperature of the isothermal process.