Which is the best tip for optimizing a trueview video for viewer engagement?
a. look at engagement rate for targeting and focus on the methods with the highest view through rate
b. run both an in-stream and a video discovery version of the ad increase each target group's bid by 100%
c. add exclusions to the campaign

Which of the following statements is incorrect in relation to processes: while, strictly speaking, at any instant of time, the cpu is running only one process, in the course of 1 second, it may work on several of them, giving the illusion of parallelism a process is just an instance of an executing program, including the current values of the program counter, registers, and variables processes can be created when an operating system is booted, created by the user, or a running process can create children processes there is a master process, which when started can last forever, and is not killable