The correct answer is A. Thermology
Step-by-step explanation:
Thermology is the science or study of heat, this is used in multiple fields such as science or research to know they way heat is emitted by certain bodies or how heat affects them. The word thermology derives from thermo and -ology, the prefix thermo means heat while the suffix ology is usually added to prefixes to indicate field or study. Thus, by mixing thermo + ology the meaning of the word results in the field, study or science or heat, this will be deduced if you know the meaning of the two parts that composed the word (thermo and ology) and by mixing the meaning of both.