In a pristine nebula, where does the majority of the helium present originate from?

Answer

It is primordial, created during the Big Bang nucleosynthesis

In simple star-forming clouds, the helium present is primarily primordial, meaning it was created during the universe's earliest moments, similar to the majority of the hydrogen.

In a pristine nebula, where does the majority of the helium present originate from?
SpaceastronomycompositionnebulaGases