Which of these terms best describes the following statement?

"A solution of the unknown compound turned litmus paper blue"

AHypothesis
BModel
CQuantitative observations
DQualitative observation

Verified Answer :

Which of these terms best describes the following statement?"A solution of the unknown compound turned litmus paper blue" 
A. Hypothesis 
B. Model
C. Quantitative observations 
D. Qualitative observation- is the answer