Step 1: Identify the Brand Ambassadors.
- Rolex: Roger Federer is the face of Rolex, known for his association with luxury and precision.
- Frank Muller: Ranveer Singh is the brand ambassador of Frank Muller, representing the brand's bold and dynamic image.
- Aqualens: Kiara Advani endorses Aqualens, a brand known for its focus on eye care and wellness.
- TAG Heuer: Ryan Gosling represents TAG Heuer, a luxury Swiss watch brand known for its precision and innovation.
Step 2: Conclusion.
The brand ambassadors for each brand are:
- Rolex: (a) Federer
- Frank Muller: (b) Ranveer Singh
- Aqualens: (c) Kiara Advani
- TAG Heuer: (d) Ryan Gosling