Arrange the given words in the sequence in which they occur in the dictionary.
1. Please
2. Plunge
3. Plummet
4. Plush
5. Pleasure

First two letters of all the words are same so verifying the third letter.

The third letter of Please and Pleasure is 'e' which is before 'u' in alphabetical order. So Please and Pleasure are placed before Plunge, Plummet and Plush.

Among Please and Pleasure, the sixth letter of Please is before Pleasure in alphabetical order. So Please is placed first and Pleasure is placed second.

Among Plunge, Plummet and Plush, the alphabetical order of fourth letters are m,n,s. Arranging them respectively, Plummet is placed third, Plunge is placed fourth, Plush is placed fifth.

$$\therefore\ $$The order of the givens words according to dictionary is Please, Pleasure, Plummet, Plunge, Plush

Hence, the correct answer is Option B