An activity, A$,$ has two succeeding activities, B and C$.$ Given the following information, determine the latest starting time for activity A$.$

EF B $=15,$ EF C $=17,$ LF B $=24,$ LF C $=27$; activity times are A $=4,$ B $=6,$ C $=8.$

Question $3$ Select one:

a$.$

$14$

b$.$

$15$

c$.$

$16$

d$.$

$17$

e$.$

$18$