Match the word to equivalent in Russian.

Solution:

The word 'Volunteer' in Russian translates to 'Волонтер, доброволец'.

• a. Волонтер, доброволец
• b. Вести дела (To conduct business)
• c. Прибыль (Profit)
• d. Благотворительность (Charity)

Therefore, option 'a' is the correct equivalent.

Answer: a. Волонтер, доброволец