Explanation:

- Paytm, a digital wallet company, has launched the 'Paytm Money' app.

- The app is designed to facilitate mutual fund investments.

- It offers the option to start systematic investment plans (SIPs).

- The SIPs can be started at a minimal investment amount to encourage more users.

- Correct Answer: Option 5 - Rs 100

- This lower entry-point aims to make investing accessible to a broader audience.