A play on words which are similar in sound but different in meaning is-

Correct answer: pun.

• Pun
- A play on words which are similar in sound but different in meaning is called pun.
- It occurs when a single word conveys two meanings.
- ​অর্থাৎ Pun হচ্ছে শব্দের এক মজার ব্যবহার যেখানে একটি শব্দ দুটি ভিন্ন অর্থে ব্যহৃত হয়।
- The title of Hemingway's famous novel, Farewell to Arms has a Pun on it.
- এখানে Arms দ্বারা যুদ্ধ বা অস্ত্রের পাশাপাশি প্রেমিকার হাতকেও বোঝানো হয়েছে।

Other options:
খ) Simile
- A simile is an explicit comparison between two different things.
- Usually, "as" and "like" are used in it.
- In a simile, the resemblance is explicitly indicated by the words.
- দুটি ভিন্নধর্মী জিনিসের মধ্যে As ও Like দ্বারা তুলনা বোঝালে তাকে Simile বলে

গ) Haiku
- A traditional Japanese haiku is a three-line poem with seventeen syllables, written in a 5/7/5 syllable count.
- Often focusing on images from nature, haiku emphasizes simplicity, intensity, and directness of expression.

ঘ) Limerick
- A light or humorous verse form of five chiefly anapestic verses, of which lines 1, 2, and 5 are of three feet and lines 3 and 4 are of two feet with a rhyme scheme of "a a b b a".
- পাঁচ লাইনের মজার ছড়া।
- A popular form of short, funny verse that is often nonsensical and rude.

Source: An ABC of English Literature, Dr. M. Mofizar Rahman.