Coronal Gas Emits X-Rays and Has Temperatures of ____ $10 ^ { 6 }$

Multiple Choice

Coronal gas emits x-rays and has temperatures of ____.

A) $10 ^ { 6 }$ K o r higher
B) more than $10 ^ { 4 }$ K but less than $10 ^ { 6 }$ K
C) 5000 K
D) between1000 K to 5000 K
E) less than 500K