Read the given conversation between six friends. Who among them has given correct statements.
Raj – Friction slows down moving objects.
Maya – Gravitational force is a contact force.
Ali – A lever can only move objects in one direction.
Nita – Pulley is used to lift heavy loads easily.
Arya – A wedge is used to join objects.
Ravi – Elastic force helps objects regain their shape.
A Raj, Maya and Ali
B Maya, Nita and Ravi
C Raj, Nita and Ravi
D Maya, Ali and Arya