Select the correct option that represents the given words in the order in which they appear in an English dictionary:

1. Magistrate

2. Magnet

3. Magnesium

4. Magnify

5. Magnificent

The correct option representing the dictionary order of the given words is 1, 3, 2, 5, 4.

To arrange the given words in the order in which they appear in an English dictionary, we compare their letters position by position from left to right:

1. Magistrate
2. Magnet
3. Magnesium
4. Magnify
5. Magnificent

Step 1: Compare the fourth letter.
Word 1 (Magistrate) has 'i' as its fourth letter (M-a-g-i), while Words 2, 3, 4, and 5 all have 'n' as their fourth letter (M-a-g-n). Since 'i' comes before 'n' in the alphabet, 1. Magistrate comes first.

Step 2: Compare the fifth letter of the remaining words (Magnet, Magnesium, Magnify, Magnificent).
Words 2 (Magnet) and 3 (Magnesium) have 'e' as their fifth letter.
Words 4 (Magnify) and 5 (Magnificent) have 'i' as their fifth letter.
Since 'e' comes before 'i', Words 2 and 3 come before Words 4 and 5.

Step 3: Compare Word 2 (Magnet) and Word 3 (Magnesium) by their sixth letter.
Word 3 (Magnesium) has 's' as its sixth letter.
Word 2 (Magnet) has 't' as its sixth letter.
Since 's' comes before 't', 3. Magnesium comes before 2. Magnet.

Step 4: Compare Word 4 (Magnify) and Word 5 (Magnificent) by their seventh letter.
Word 5 (Magnificent) has 'i' as its seventh letter (M-a-g-n-i-f-i...).
Word 4 (Magnify) has 'y' as its seventh letter (M-a-g-n-i-f-y).
Since 'i' comes before 'y', 5. Magnificent comes before 4. Magnify.

Putting all the steps together, the correct dictionary order of the words is:
1. Magistrate (1)
2. Magnesium (3)
3. Magnet (2)
4. Magnificent (5)
5. Magnify (4)

Therefore, the correct sequence is 1, 3, 2, 5, 4.