Three Individuals Have $1000 and Identical Preferences for Gum,g,and Cigarettes,s,as

Three individuals have $1000 and identical preferences for gum,g,and cigarettes,s,as measured by the utility function U(g,s) = 10g^0.9s^0.1.The price of gum is $9 and the price of cigarettes is $12.What is the market surplus/shortage at a price of $12 when the supply of cigarettes is 5?

A) There will be a shortage of 3 cigarettes.
B) There will be a surplus of 3 cigarettes.
C) There will be a shortage of 2/3 cigarettes.
D) There will be a surplus of 2/3 cigarettes.