The correct option is D Self-help groups
Microfinance services promote saving habits among low-income groups and unserved sections of the society. In addition, they provide microcredit facilities to people to promote self-employment. Generally, the beneficiaries of microfinance services are various small self-help groups. Self-help groups are small groups with usually not more than 20 members. These groups gather and save money regularly and use their savings as capital in various business operations.