The correct answer is option 3 - Protection of life and personal liberty according to procedure established by law. This fundamental right is available to both Indian citizens and foreigners on Indian soil. It means that both citizens and foreigners have the right to protection of their life and personal liberty, as long as it is done in accordance with the procedures established by law.

Option 1 - Prohibition of discrimination on grounds of religion, race, caste, sex, or place of birth, is a fundamental right available only to Indian citizens, not to foreigners. This right ensures equality and prohibits discrimination against Indian citizens based on these grounds.

Option 2 - Equality of opportunity in matters of public employment, is also a fundamental right available only to Indian citizens. This right provides equal opportunities for Indian citizens when it comes to public employment.

Option 4 - The right to practice any profession or to carry on any occupation, trade or business, is also a fundamental right available only to Indian citizens. This right ensures that Indian citizens have the freedom to choose their profession or engage in any trade or business they desire.

Overall, it is important to note that while some fundamental rights are available to both Indian citizens and foreigners, there are also specific rights that are exclusive to Indian citizens.