​Which company launched India's first social mobile wallet "Udio"?

Correct option is A

The correct answer is (A) Transerv.

Explanation:
Transerv launched "Udio", India's first social mobile wallet, integrating social features with mobile payment services.

Incorrect Options Explanations:

•  Twitter: Social media platform, no mobile wallet.
•  Facebook: Social media platform, not involved in mobile wallets.
•  Oxigen: Digital wallet company, not the creator of "Udio."

Information Booster:

• Udio: Integrated social interactions with payments.
• Transerv: Digital payment solutions provider.
• Other Wallets: Companies like Paytm, PhonePe, and Google Pay are popular in India for digital payments.