Activity Description Activity Time Preceding Activity

A Problem Definition $2$ None

B System Analysis $3$ A

C Design I$/$Q $4$ B

D Design Database $10$ B

E Develop Input Screens $6$ C

F Develop Output Reports $4$ C

G Create Database $5$ D

H Test System $2$ E$,$ G

I Implement System $3$ H

Given the project network information, complete the forward and backward pass. What is early start for Activity C