The correct answer is: East.

The Mandovi River is a river in the Indian state of Goa. It originates in the Western Ghats and flows eastwards into the Arabian Sea. The Zuari River is also a river in Goa. It originates in the Western Ghats and flows eastwards into the Arabian Sea.

The other options are incorrect because:

  • The Mandovi and Zuari rivers do not flow towards the West.
  • The Mandovi and Zuari rivers do not flow towards the North.
  • The Mandovi and Zuari rivers do not flow towards the South.