I need help with this........

You are in charge of a project. Your team has determined that there are 7 activities to be completed. Here are the activities, the time to complete the activity and the immediate predecessor of the activity. Using this data 1) construct a Gantt Chart, 2) determine the time it will take to complete the project, 3) You are monitoring the progress of this project and discover that activity C is in danger of taking longer than planned due to funding issues. What options do you have to get the project back on track?

Activity	Time	Immediate Predecessor
A	10 Weeks	None
B	6 Weeks	A
C	7 Weeks	A
D	6 Weeks	B
E	8 Weeks	C
F	3 Weeks	D
G	4 Weeks	F