Questions $1-6$

Use the following problem statement to answer questions $1-6.$

The project network below shows activity times $($in weeks$)$ and their precedence relationships.

$[$Note$]ES=$ Maximum $($EF$).EF=ES+t.LF=$ Minimum $($LS$).$ LS $=$ LF $-$ t$.$ Slack $=LS-ES.$ Slack $=$ LF $-$EF$.$

$1$

Multiple Choice

$4$ points

What is the EF time for activity C$?$ Round to the nearest whole number.

$3$

$10$

$2$

Multiple Choice

$4$ points

What is the ES time for activity C$?$ Round to the nearest whole number.

$6$

$7$

$3$

Multiple Choice

$4$ points

What is the LS time for activity E$?$ Round to the nearest whole number.

$11$

$14$