Step 1: Understanding Pranayama
Pranayama in yoga refers to techniques that involve regulation of breath. These practices are part of the eight limbs of yoga and are aimed at enhancing the flow of life energy (prana) in the body.
Step 2: Classifying the techniques
- Sitali (A): This is a cooling pranayama technique. It involves inhaling through the rolled tongue and exhaling through the nose. It is used to reduce body heat and calm the mind. Hence, it is classified under pranayama.
- Bhramari (B): Known as the "bee breath", this involves producing a humming sound while exhaling. It promotes relaxation and is widely practiced as a pranayama technique.
- Uddiyana (C): This is technically a bandha (abdominal lock), not a pranayama. It is used in advanced yogic practices but is not classified under breathing techniques.
- Sheetkari (D): Similar to Sitali, this is also a cooling breath practice. It is done by inhaling through the teeth and exhaling through the nose, thus making it a pranayama technique.
Step 3: Conclusion
Among the given options, (A) Sitali, (B) Bhramari, and (D) Sheetkari are pranayama techniques. (C) Uddiyana is a bandha, not a pranayama.