Correct Answer: 2, 1, 4, 3, 5

Solution : Given:
1. Fragile 2. Fracture 3. Fraud 4. Fragment 5. Fridge

Step 1: Compare the first and second letters of each word. Since all the words start with the same letter F and are followed by r then move on to the next letter.
Step 2: The third letter of each word is either a or i. Based on the alphabetical order of these letters, we can arrange them – Fr a gile, Fr a cture, Fr a ud, Fr a gment, Fr i dge
Step 3: Compare the fourth letter of (Fra g ile, Fra c ture, Fra u d, Fra g ment). Fra c ture will come before Fra g ile and Fra g ment and Fra u d will come at last. As c comes before g and u comes at last.
Step 4: Compare the fourth letter of (Frag i le, Frag m ent). Frag i le will come before Frag m ent in the sequence as i comes before m in the alphabetical system.

So, the sequence is Fracture, Fragile, Fragment, Fraud, Fridge or 2, 1, 4, 3, 5. Hence, the second option is correct.