Miguel is describing the properties of pepper for his science project. To describe it, he uses black, grainy, and room temperature. What properties was Miguel using to describe the pepper?

A. He can show that black, grainy, and room temperature are measurable properties.
B. He can show that black, grainy, and room temperature are observable properties.
C.He used black and grainy as measurable properties, and he used room temperature as an observable property.
D. He used black and grainy as observable properties, and he used room temperature as a measurable property.