What is a liquid's fire point?

What is a liquid's fire point?
 
  A) Lowest temperature of a liquid, as determined by specific laboratory tests, at which the liquid gives off vapors at a sufficient rate to support a momentary flame across its surface
  B) Highest temperature of a liquid, as determined by specific laboratory tests, at which the liquid gives off vapors at a sufficient rate to support a flame across its surface
  C) Lowest temperature of a liquid, as determined by specific laboratory tests, at which the liquid reaches its boiling point
  D) Temperature at which the substance must be raised to produce sufficient vapors to sustain burning after the initial flash