Fluorine is a stronger oxidising agent than chlorine because :
$(a)$ $F-F$ bond has a low enthalpy of dissociation.
$(b)$ Fluoride ion $(F^{-})$ has high hydration enthalpy.
$(c)$ Electron gain enthalpy of fluorine is less negative than chlorine.
$(d)$ Fluorine has a very small size.
Choose the most appropriate answer from the options given :

• A
  $(a)$ and $(b)$ only
• B
  $(a)$ and $(c)$ only
• C
  $(a)$ and $(d)$ only
• D
  $(b)$ and $(c)$ only