When creating a blog post, some commands are inactive until you:

This question asks about nesting of if, if-else, switch, while, do- while, and for statements:

a) These constructs may not be nested in at all. b) These constructs may be nested in any way that meets the needs of algorithms the programmer is coding. c) Only control constructs of a given kind may be nested (while loops within while loops; if-else within if-else etc.) d) The question does not make sense in C++.

In the three-way handshake, the first packet in the sequence has the ________ flag set.

Fill in the blank(s) with the appropriate word(s).