What is the means of incident or violation detection which is based on a collected sample of the unwanted activity?

Each software module should be constructed, tested, and verified using the verification process, and then validated using the validation process, which is described under section ____________ in the ISO 12207 standard.

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

Assume that the value of the string message is "Happy New Year". What value would message.IndexOf("New") yield?

A. -1 B. 2 C. 6 D. 7