?Compiling a program using a CASE tool or a language compiler detects syntax errors, which are language grammar errors.

What is the value in n after line 4 is run?

Use the following code to answer the next set of questions. Assume all needed files are included. 1. ``` string s, t; ``` 2. ``` s = “Get up and go to school!”; ``` 3. ``` t = “NO!”; ``` 4. ``` int n = s.size(); ``` 5. ``` int w = s.at(3); ``` 6. ``` int x = s.at(12); ``` 7. ``` s += t; ``` 8. ``` cout << s; ``` A. 23 B. 24 C. 3 D. -1

Changes transparency of elements, including images.

a. Polyfills b. Box-shadow property c. Multiple backgrounds d. Gradient backgrounds e. Opacity property