3.) What is the capital of The United States of America?
  a.) Texas
  b) Florida
  c) Washington D.C
  d) Chicago 
 
Answer (Use N for next question, P for previous): C

$ cat testit
#!/bin/bash
 
QUESTIONS=(
   "What is the capital of The United States of America"
   "The sky is what colour"
)
 
OPTIONS=(
        "Texas|Florida|Washington D.C|Chicago "
        "Blue|Green|Grey|Orange"
)
 
CORRECT=( "C" "A" )
 
 
echo ${QUESTIONS[0]}?
echo ${CORRECT[1]}
 
$ ./testit
What is the capital of The United States of America?
A

QNUM=0
while true
do
   ask $QNUM
   case $? in
       0)  let QNUM=QNUM+1 ;;  # Next
       1)  let QNUM=QNUM-1 ;;  # Prev
       3)  break ;; # Quit/Done
   esac
   # If before first or after last then wrap
   [ $QNUM -ge ${#QUESTIONS[@]} ] && QNUM=0
   [ $QNUM -lt 0 ] && let QNUM=${#QUESTIONS[@]}-1
done
QNUM=0
SCORE=0
while [ $QNUM -lt ${#QUESTIONS[@]} ]
do
    [ "${CORRECT[$QNUM]}" = "${ANSWER[$QNUM]}" ] && let SCORE=SCORE+1
    let QNUM=QNUM+1
done