Explanation:

Let’s break it down:

- The Indian National Anthem, “Jana Gana Mana,” has an official playing time when sung in full, not a shortened version.

- Here’s what the options say:

- Option 1: 48 seconds — This is how long it takes to sing the officially adopted short version. Lots of school assemblies go by this.

- Option 2: 62 seconds — Feels a bit too long for the standard version; that’s not quite right.

- Option 3: 52 seconds — Close, but this is *not* the standard or the officially recognized playing time.

- Option 4: 68 seconds — Now this is the official timing for the full-length anthem, as recognized by the Government of India.

So to sum up,

Option 4: 68 seconds is correct.