Medicare represents a significant health insurance resource for the disabled and which of the following:

a$.$

The elderly with approximately $95\%$ of that group$$s members covered.

b$.$

The indigent with approximately $95\%$ of that groups members covered.

c$.$

The elderly with approximately $50\%$ of that group$$s members covered.

d$.$

The indigent with approximately $50\%$ of that groups members covered.