Identify the correct two-column proof:
Given: qp⎯⎯⎯⎯⎯≅mp⎯⎯⎯⎯⎯⎯ and np⎯⎯⎯⎯⎯≅rp⎯⎯⎯⎯⎯
Prove: mn=qr
a) qp = mp = np = rp; Therefore, mn = qr by transitive property.
b) qp = np and mp = rp; Therefore, mn = qr by substitution.
c) qp = mp, np = rp; Therefore, mn = qr by definition of congruence.
d) qp = mp and np = rp; Therefore, mn = qr by reflexive property.