Choose the word which is least like the other words.

Answer: Option B

Explanation:

All except quay are part of ship.

Answer: Option C

Explanation:

All except Watermelon grow on trees.

Answer: Option D

Explanation:

All except Mustard are food grains, while mustard is an oilseed.

Answer: Option B

Explanation:

All except pearl are different forms of carbon.

Answer: Option C

Explanation:

All except Character are external qualities.