Which type of vaccine involves stimulation of b cells without the assistance of t cells?

The vaccine that support stimulation of B cells without depending on T helper cells are called Polysaccharide vaccines.

Polysaccharide vaccines are defined as a inactivated subunit vaccine made up of long sugar chains that make the surface capsule of some bacteria. There are three main diseases for which pure polysaccharide vaccines are available that includes meningococcal disease, pneumococcal disease, and Salmonella Typhi.

well we can't tell you because we cant see the time give a screen shot or something.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.