Concept:
In the Patanjali Yoga Sutra, Yama is the first limb of Ashtanga Yoga (Eightfold Yoga). Yamas are ethical restraints or moral disciplines that guide a person toward self-control and harmonious living.
Patanjali mentions five Yamas, which are considered universal moral principles.
Step 1: Understand the meaning of Yama.
The word “Yama” refers to ethical restraints or disciplines that regulate behavior and social conduct.
According to the Yoga Sutra, the five Yamas are:
• Ahimsa (Non-violence)
• Satya (Truthfulness)
• Asteya (Non-stealing)
• Brahmacharya (Celibacy or moderation)
• Aparigraha (Non-possessiveness)
Thus:
\[
\text{Number of Yamas} = 5
\]
Step 2: Analyze the given options.
Option (A): Four
Incorrect. Yoga Sutra does not mention four Yamas.
Option (B): Seven
Incorrect. The number of Yamas is not seven.
Option (C): Five
Correct. Patanjali describes five Yamas.
Option (D): Ten
Incorrect. Though some other yogic traditions mention ten Yamas, the Yoga Sutra specifically mentions five.
Step 3: Identify the correct option.
Since the Yoga Sutra mentions five Yamas, the correct answer is:
\[
\boxed{\text{Five}}
\]