Which of the following is paramagnetic?

In oxygen $(O_2)$ and carbon $(C_2)$ molecules,the bonding is:

Consider the following species: $CN^{+}$,$CN^{-}$,$NO$,and $CN$. Which one of these will have the highest bond order?

Which of the following molecule$(s)$ show$(s)$ paramagnetic behavior?
$(A) O_2$ $(B) N_2$ $(C) F_2$ $(D) S_2$ $(E) Cl_2$
Choose the correct answer from the options given below:

Bond order of $O_2$ is

Provide the electron configuration,magnetic property,bond order,and molecular orbital energy diagram for the fluorine $(F_2)$ molecule.