Which of the following reasons complete the proof in the picture below
a. definition of complementary
b. substitution property of equality
c. definition of supplementary angles
d. transitive property of equality

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next