Which social networking company officially launched the "Express Wi-Fi" internet service in India to provide affordable public hotspots?

Introduction / Context:
Technology companies frequently announce initiatives to expand internet access in developing countries. One such initiative was “Express Wi-Fi”, a programme that set up low cost public Wi-Fi hotspots in partnership with local telecom operators and entrepreneurs in India. This question checks if you know which social networking company launched Express Wi-Fi in the Indian market.

Given Data / Assumptions:

• The service mentioned is “Express Wi-Fi”.
• It is described as an internet service launched in India.
• The options list four major online platforms: Instagram, Twitter, Facebook, and YouTube.
• We assume the question refers to widely reported news around 2017.

Concept / Approach:
Express Wi-Fi is part of a broader effort by Facebook to increase internet connectivity, especially in emerging markets. The service allows local partners to sell affordable data packs to users who can then access the internet at Wi-Fi hotspots. Instagram and WhatsApp are products owned by Facebook, while Twitter and YouTube are separate companies. Recognising that Express Wi-Fi is a Facebook initiative is the key to answering correctly.

Step-by-Step Solution:
Step 1: Recall which company you associate with the Express Wi-Fi brand. Step 2: Remember that Facebook Connectivity initiatives such as Internet.org and Free Basics later evolved into Express Wi-Fi projects. Step 3: Compare this recollection with the options: Instagram, Twitter, Facebook, and YouTube. Step 4: Select “Facebook” as the company that launched Express Wi-Fi in India.

Verification / Alternative check:
You can verify mentally by recalling that Instagram is an app owned by Facebook and does not directly brand connectivity programmes, while YouTube is owned by Google and Twitter focuses mainly on microblogging. Only Facebook has actively promoted named internet access programmes like Internet.org and Express Wi-Fi.

Why Other Options Are Wrong:

• Instagram: A social photo and video sharing platform owned by Facebook, but not the company behind the Express Wi-Fi programme.
• Twitter: Known for microblogging and live updates, not for launching Express Wi-Fi in India.
• YouTube: A video platform owned by Google, involved in data heavy services but not in this particular Wi-Fi initiative.

Common Pitfalls:
Some candidates mistakenly connect any connectivity initiative with Google or general internet companies, ignoring that this question focuses on a branded programme named Express Wi-Fi. Another trap is to overthink Instagram because it is also a Facebook product, but the corporate level decisions and announcements are always under the name “Facebook”.

Final Answer:
The “Express Wi-Fi” internet service in India was officially launched by Facebook.