What kind of error can be found in this program?

Which of the following is not contained on the slide show toolbar? a. next button b. slide button c. close button d. pen too

Answer these and get 40 points and brainliest

3. write assignment statements that perform the following operations with the variables a, b, and c: a. adds 2 to a and assigns the result to b b. multiplies b times 4 and assigns the result to a c. divides a by 3.14 and assigns the result to b