As the Moon Covers the Solar Disk During a Solar

As the Moon covers the solar disk during a solar eclipse,a flash spectrum of the Sun's chromosphere can be recorded.This flash spectrum reveals an emission spectrum and provides information on the properties of the chromosphere.As the Moon moves from the inner chromosphere to the outer chromosphere,the spectral lines present in the flash spectrum change.What is going on in the chromosphere as the distance from the photosphere increases that produces the changes in the flash spectrum?

A) temperature and density both decrease
B) temperature decreases and density increases
C) temperature increases and density decreases
D) temperature and density both increase