True or false in a two column proof the right column states your reasons

Ineed with 14, 16, 28 and 36 me. we didn't go over them in class so i don't know what to do.

Which of the following is the equation of a line that passes through the point (1,4) and is parallel to the x-axis a. y=1 b. y=4 c. x=1 d. x=4

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of