Question: a) Write a regular expression that matches dates written in the following format: yyyy-mm-dd. b) Write a regular expression that matches either five or nine-digit

a) Write a regular expression that matches dates written in the following format: yyyy-mm-dd.

b) Write a regular expression that matches either five or nine-digit zip codes in the following format: xxxxx or xxxxx-xxxx where x represents any number between 0 and 9.

c) Write a regular expression that matches an email address in the following format: localpart@domain.com

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