Among LiCl, BeCl2, BCl3 and CCl4, the covalent bond character varies as :
LiCl < BeCl2> BCl3> CCl4
LiCl > BeCl2< BCl3< CCl4
LiCl < BeCl2< BCl3< CCl4
LiCl > BeCl2> BCl3> CCl4