Correct Answer: 2, 4, 1, 3

Solution : Given:
1. Launderette 2. Laughter 3. Laundry 4. Launch

Step 1: Compare the first letter of each word. Since all the words start with the same letter L , then move on to the next letter.
Step 2: The second and third letters of each word are the same, i.e., a and u , so move on to the next letter.
Step 3: The fourth letter of each word is either n or g . Based on the alphabetical order of these letters, we can arrange them – Lau g hter, Lau n derette, Lau n dry, Lau n ch.
Step 4: Compare the fifth letter of (Laun d erette, Laun d ry, Laun c h). Launch will come before Launderette and Laundry as c comes before d in alphabetical order.
Step 5: Compare the sixth letter of Laund e rette and Laund r y. Launderette will come before Laundry as e comes before r in alphabetical order.

So, the sequence is Laughter, Launch, Launderette, Laundry, or 2, 4, 1, 3. Hence, the fourth option is correct.