Arrange the following words in the order as they would appear in English dictionary.
1. Denote
2. Destiny
3. Diagonal
4. Demand
5. Density

First letter of all the words are same so verifying the second letter.

The second letter of all the words except Diagonal are 'e' where diagonal has 'i', so Diagonal will be the last word in the order.

The third letter of remaining four words are n,s,m,n where 'm' comes first and 's' comes later in the alphabetical order , so Demand is the first word in the order. Destiny is the fourth word in the order.

The fourth letter of remaining words Denote and Density are 'o' and 's' where 'o' comes before 's' in the alphabetical order, so Denote is the second word in the order and Density is the third word in the order.

$$\therefore\ $$The order of the givens words according to English dictionary is Demand, Denote, Density, Destiny, Diagonal

Hence, the correct answer is Option D