$\backslash$table$[[(1).,$M$1,(4),(1),],[$Qd$,$Qd$,$Price,Qs$,$Qs$],[50,40,10,70,80],[60,50,9,60,80],[80,60,8,50,70],[90,70,7,40,60],[100,80,6,30,50]]$

Refer to the table. If demand is represented by columns $(3)$ and $(1)$ and supply is represented by columns $(3)$ and $(4),$ equilibrium price and quantity will be:

$$10$ and $60$ units.

$$9$ and $60$ units.

$$8$ and $80$ units.

$$7$ and $30$ units.