How many lone pairs of electrons are on the as atom in ascl3?

First, draw the Lewis structure for the compound which is shown in the attached picture. From what we can see, there are 4 pairs of electron dots surrounding the As atom. Three of these pairs are bonding each to the other three Cl atoms. The last pair is called a lone pair. Hence, there is only 1 lone pair for As atom.

It’s b. mass i searched it up