B

$3$

$2$

$100$

C

A$,$ B

$5$

$3$

$200$

D

C

$4$

$4$

E

C

$2$

$1$

$300$

F

C

$1$

$1$

G

D

$3$

$2$

$200$

H

E

$1$

$1$

I

F

$1$

$1$

J

H$,$ I

$3$

$1$

$100$

What is the slack time for Activity $F$ and the late start for Activity $H?$