Correct Answer: 15234

Solution : Given:
1. Temple 2. Trained 3. Training 4. Troupe 5. Tented

Step 1: Compare the first letter of each word. Since all the words start with the same letter T , then move to the next letter.
Step 2: The second letter of each word is – e, r, r, r, e. Based on the alphabetical order of these letters, we can arrange them – T e mple, T e nted, T r ained, T r aining, T r oupe.
Step 3: Compare the third letter of (Te m ple, Te n ted) and (Tr a ined, Tr a ining, Tr o upe). Te m ple will come before Te n ted in the sequence as m comes before n in the alphabetical system. Similarly, Tr a ined and Tr a ining will come before Tr o upe.
Step 4: As the first five letters of ( Train ed, Train ing) are the same so, compare the sixth letter of (Train e d, Train i ng). Train e d will come before Train i ng in the sequence as e comes before i in the alphabetical system.

The sequence will be Temple, Tented, Trained, Training, Troupe, or 15234. Hence, the first option is correct.