1) these are operators that add and subtract one from their operands.

a) plus and minus
b) ++ and --
c) binary and unary
d) conditional and relational
e) none of these

2) what is the output of the following code segment?
n = 1; while (n < = 5) cout < < n < < ' '; n++;

a) 1 2 3 4 5
b) 1 1 and on forever
c) 2 3 4 5 6
d) 1 2 3 4
e) 2 3 4 5