What are some factors that could allow flood basalts to have high-volume eruptions?

Name: What are some factors that could allow flood basalts to have high-volume eruptions?
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All of the options listed are factors that contribute to the high-volume eruptions of flood basalts. A large amount of magma generated in the mantle, the magma rising to the surface along thick dikes, and the magma being hot with low viscosity all facilitate the conditions necessary for these extensive lava flows.

What Are Some Factors That Could Allow Flood Basalts to Have