Question: In C language please. Provide three (3) examples for each of the following regular expressions. If NULL is a valid expression, list NULL as your

In C language please. In C language please. Provide three (3) examples for each of the

Provide three (3) examples for each of the following regular expressions. If NULL is a valid expression, list NULL as your first example. 1. 123[AZ]456[az]789 2. [azAZ] 3. (abc | def ghi) (xyz) 4. [09]{3}[09]{3}[09]{4} 5. [a-z]+@[a-z]+[0-9]. (biz | com | info | gov)

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