Step 1: Understanding the Concept:
The question asks to identify the subject matter of Section 100 of the Cr.P.C. This section is part of the chapter on processes to compel the production of things.
Step 2: Detailed Explanation:
Section 100 of the Cr.P.C. is titled "Persons in charge of closed place to allow search". It lays down detailed procedures and safeguards to be followed when a search of a place is conducted. The key provisions include:
- The right of the police to enter and search any closed place.
- The duty of the person in charge of the place to allow ingress and facilitate the search.
- The requirement to call upon two or more independent and respectable inhabitants of the locality (known as 'panch' witnesses) to be present and witness the search.
- The preparation of a search list (seizure memo) of all things seized, which must be signed by the witnesses.
While the section involves seizure (A) and is related to search warrants (D), its primary focus and detailed procedure are about the conduct of the search itself. Therefore, 'Search' (B) is the most accurate and encompassing answer.
Step 3: Final Answer:
Section 100 provides the procedural safeguards for conducting a search. Therefore, option (B) is the correct answer.