Correct Answer: 3, 2, 1, 5, 4

Solution : Given:
1. Ambitions  2. Ambiguous 3. Ambiguity 4. Animation 5. Animal

Step 1: Compare the first letter of each word. Since all the words start with the same letter A , move on to the next letter.
Step 2: The second letter of each word is either m or n. Based on the alphabetical order of these letters, we can arrange them – Ambitions, Ambiguous, Ambiguity, Animation, Animal.
Step 3: Compare the fifth letter of (Ambi t ions, Ambi g uous, Ambi g uity) and the sixth letter of (Anima t ion, Anima l ). Ambi g uous and Ambi g uity will come before Ambi t ions in the sequence as g comes before t in the alphabetical system. Similarly, Anima l will come before Anima t ion as l comes before t.
Step 4: Compare the seventh letter of (Ambigu o us, Ambigu i ty). Ambigu i ty will come before Ambigu o us in the sequence as i comes before u in the alphabetical system.

So, the sequence is Ambiguity, Ambiguous, Ambitions, Animal, Animation or 3, 2, 1, 5, 4. Hence, the third option is correct.