Recently, linking of which of the following rivers was undertaking?

India took a step forward in its ambitious but long-pending goal to interlink major rivers to form a national water grid. The Pattiseema project lifts flood water from the river Godavari and pumps it into the Polavaram right canal that empties into the river Krishna in Vijayawada. Andhra Pradesh Government is interlinking Krishna-Godavari rivers through the Pattiseema lift irrigation scheme. Hence, option B is the correct Answer.