What is the answer to “Assalamu Alaikum”?

 The polite response to "Assalamu Alaikum" is "Wa Alaikum Assalam Warahmatullahi Wabarakatuh." This translates to "And peace be upon you, the mercy of Allah and His blessings."

However, depending on the context and your level of familiarity with the person who greeted you, there can be shorter responses you can use:

• Wa Alaikum Assalam: This is the most common and concise response, simply meaning "And peace be upon you."
• Wsalam: This is a very casual abbreviation of "Wa Alaikum Assalam."
• Wa Rahmatu: This is an even shorter response, meaning "And His mercy."

Ultimately, the best response depends on your personal preference and the context of the greeting.

Remember, "Assalamu Alaikum" is a beautiful blessing and greeting, and responding with kindness and respect is always appropriate.