Correct Answer: 52143

Solution : Given:
1. Prayer 2. Plane 3. Prey 4. Predate 5. Picture

Step 1: Compare the first letter of each word. Since all the words start with the same letter P , move to the next letter.
Step 2: The second letter of each word is – r, l, r, r, i. Based on the alphabetical order of these letters, we can arrange them – P i cture, P l ane, P r ayer, P r ey, P r edate.
Step 3: Compare the third letter of (Pr a yer, Pr e y, Pr e date). Prayer will come before Prey and Predate in the sequence as a comes before e in the alphabetical system.
Step 4: Compare the fourth letter of (Pre y , Pre d ate). Predate will come before Prey in the sequence as d comes before y in the alphabetical system.

The sequence will be Picture, Plane, Prayer, Predate, Prey, or 52143. Hence, the third option is correct.