Social safety nets are the institutional measures designed to protect the economically vulnerable segments of society. These include unemployment benefits, pension schemes, and social insurance policies. Their purpose is to reduce poverty and inequality while offering a basic level of financial protection to those who are economically disadvantaged, especially in the face of globalization and market-driven policies.
In contrast, welfare measures are broader and could include social services, but the term "social safety nets" specifically refers to the systems that provide direct financial assistance or support to vulnerable populations.
Thus, the correct answer is (B) Social safety nets.