An inference
a. is a possible explanation for events using prior knowledge
b. explains if a hypothesis is or is not valid
c. is made independent of observation or prior knowledge
d. can be either qualitative or quantitative

The correct answer for the blank is -

a. is a possible explanation for events using prior knowledge.

Explanation:

An inference can be described as a conclusion or an opinion that is made or drawn on the basis of set of information or knowledge.

In other words, it is an explanation/conclusion for certain event (such as dance performance, singing, reciting poem) that is based on prior knowledge.

Thus, option a) is the right answer.

the function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body. there are many functions of proteins. they are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues.

explanation: