Answer
13,456
Work Step by Step
STEPS 1-4 (4 steps): solve question of part A... 2 choices per step
STEP 5: select an alternative:
...... alternative 1: select part B
...... ...... steps 1-4 (4 steps): answer question ... 5 choices each
...... (total alternative 1 = $5^{4}= 625$
.
...... alternative $2$: select part $C$
...... ...... steps 1-$3$ ($3$ steps): answer question ... $6$ choices each
...... (total alternative $2$ = $6^{3}= 216$
(Total step 5= 625+216=841
TOTAL (steps 1-5)=$2^{4}$(841)=13,456
