Correct Answer: 5, 4, 2, 1, 3

Solution : Given:
1. Spark 2. Smile 3. Style 4. Smart 5. Sales

Step 1: Compare the first letter of each word. Since all the words start with the same letter S , then move on to the next letter.
Step 2: The second letter of each word is a , m , p , or t . Based on the alphabetical order of these letters, we can arrange them – S a les, S m ile, S m art, S p ark, S t yle
Step 3: Compare the third letter of (Sm i le, Sm a rt). Sm a rt will come before Sm i le in the sequence as a comes before i in the alphabetical system.

So, the sequence is Sales, Smart, Smile, Spark, Style or 5, 4, 2, 1, 3. Hence, the first option is correct.