Chandragupta Maurya with the help of Chanakya decided to overthrow the Nandas because.
(a) Chanakya had been humiliated by the Nandas
(b) the Nandas were low-born
(c) the Nandas had accumulated a great deal of wealth by extortion and oppression of the people
(d) Chanakya wanted to restore the ideal of Kshatriya rule
