Explanation:

Here’s the thing—Mrinalini Sarabhai was a giant in classical dance, but she didn’t get every big Indian award out there. Let’s go through the options:

- Padma Bhushan: She got this one in 1992.

- Padma Shri: She received this honor way back in 1965.

- Padma Vibhushan: She did not get this—this is the one she’s missing.

- Sangeet Natak Akademi Award: Yes, she got it in 1965.

So, option 3—Padma Vibhushan—is the correct choice.