Given data:
The total number in sample space is n(S)= 16.
The events in which first spinner lands on red and second on an event number is,
The total number of favorable events is,
The expression for the probability that the first spinner lands on red and second on an event number is,
Thus, the probability that the first spinner lands on red and second on an event number is 5/8, so (C) option is correct.