Which of the following testing processes is the most intrusive?

The first character in a string has an index of .

a. the length of the string – 1 b. 0 c. 1 d. –1

?The Cascading Style Sheets (CSS) grid styles introduced the _________ unit, which represents the fraction of available space left on the grid after all other rows or columns have attained their maximum allowable size.

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