HELP! Am giving branliest and extra points!
Please give explanation if possible!!!

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract

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

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove