After a fall, a 95 kg rock climber finds himself dangling from the end of a rope that had been 15 m

After a fall, a 95 kg rock climber finds himself dangling from the end of a rope that had been 15 m long and 9.6 mm in diameter but has stretched by 2.8 cm. For the rope, calculate (a) the strain, (b) the stress, and (c) the Young’s modulus.