Which tool checks protected system files?

RTM is the point in the software release cycle when

a. real people are brought into the testing process. b. the software is released to programmers. c. the software is released to computer manufacturers who install it on the systems they build. d. a software update is released to the public.

The joining of two strings together to form a new string is called

(A) concatenation. (B) addition. (C) compaction. (D) substrings.