1.Among the following molecules, the correct order of C–C bond length is (C6H6C_6H_6C6H6 is benzene):a.C2H6>C2H4>C6H6>C2H2C_2H_6 > C_2H_4 > C_6H_6 > C_2H_2C2H6>C2H4>C6H6>C2H2b.C2H6>C6H6>C2H4>C2H2C_2H_6 > C_6H_6 > C_2H_4 > C_2H_2C2H6>C6H6>C2H4>C2H2c.C2H4>C2H6>C2H2>C6H6C_2H_4 > C_2H_6 > C_2H_2 > C_6H_6C2H4>C2H6>C2H2>C6H6d.C2H6>C2H4>C2H2>C6H6C_2H_6 > C_2H_4 > C_2H_2 > C_6H_6C2H6>C2H4>C2H2>C6H6Login to continueOnly logged in users canattempt or see the solution.