Write a regular expression to describe each of the following programming language constructs:

(a) Any sequence of tabs and blanks (sometimes called white space). Use \t for tab, and require at least one space or tab.

(b) Comments in the C programming language. Recall that the only kind of comment in C /* looks like this */.

(c) String constants (without escape characters). An example would be to match abcd (with double-quotes). It does not need to support double-quotes inside the string. You only need support alphabetic characters inside the double-quotes.