Which fusion stage immediately precedes oxygen fusion in the core of a very massive star?

Answer

Neon fusion

The sequential fusion stages listed for massive stars include Neon fusion, which begins around 1.2 billion Kelvin, followed by Oxygen fusion requiring temperatures nearing 1.5 billion Kelvin.

Which fusion stage immediately precedes oxygen fusion in the core of a very massive star?
ElementastronomyhydrogenCorestarsstarElementsFusion