(a) Discovery Methods. Parties may obtain discovery by one or more of the following methods: depositions upon oral examination or written questions; written interrogatories; production of documents or things or permission to enter upon land or other property, for inspection and other purposes; physical or mental examinations; and requests for admission.
(b) Scope of Discovery. Unless otherwise limited by order of the court in accordance with these rules, parties may obtain discovery regarding any matter, not privileged, that is relevant to the subject matter involved in the pending action, whether it relates to the claim or defense of the party seeking discovery or to the claim or defense of any other party, including the existence, description, nature, custody, condition and