Concept:The core idea is choosing the correct preposition that indicates movement or direction towards the interior of a place.
Explanation:The word "entry" implies the act of going inside a place.
The preposition "into" is specifically used to show movement from the outside to the inside of something.
A common point of confusion is between "in" and "into".
"In" usually refers to a fixed position or a state of being inside.
"Into" usually refers to a movement or a change of state from outside to inside.
Since "entry" describes an action directed towards the inside of the building, "into" is the most logical and grammatically correct choice.
Let us examine why the other options are incorrect:
"of" indicates a relationship or belonging, which does not fit the context of physical restriction.
"for" indicates a purpose or a duration of time, which is not suitable here.
"by" indicates the agent of an action, a method, or a deadline, but it does not convey the idea of going inside.
Therefore, only "into" correctly completes the sentence to mean the act of physically entering the building.
Answer:Option A: into