The statement given in option (a) is correct.
Explanation
All the major non-communist and non-Congress opposition parties formed an electoral alliance known as the Grand Alliance. The SSP, the PSP, the Bharatiya Jana Sangh, the Swatantra Party and the Bharatiya Kranti Dal came together under this umbrella to counter Mrs. Gandhi. They gave the slogan for Indira hatao, desh bachao owing to the growing political and economic crisis that the country encountered.