A small software development project has these major activities. The times are estimated and provided in the table below. Run Excel QM and answer this question

What is the Project Variance?

Activity

Immediate

Predecessor

a Optimistic

m

Likely

b Pessimistic

A

$--$

$2$

$5$

$8$

B

A

$3$

$6$

$9$

C

A

$4$

$7$

$10$

D

B

$2$

$5$

$14$

E

D

$3$

$3$

$3$

Group of answer choices

$7$

$16$

$6$

$1$

None of these are correct