As per the given text, combining sentences 4 and 5 with the transition word "so" is the best way to revise the paragraph. The correct option is D.
<h3>What are preschools?</h3>
A preschool, also known as a nursery school, pre-primary school, or play school, is an educational establishment or learning space that provides children with early childhood education before they begin compulsory education at primary school.
The missing passage is:
(1) A classroom should be set up as a series of learning centers, which are designated stations that encourage exploration. (2) This layout allows children to move freely throughout the room, delving into activities that interest them and possibly discovering new materials and games. (3) Self-directed play and learning promotes confidence and independence in kids. (4) Students are focused on a task of their choosing, enjoying themselves, and interacting in smaller groups. (5) Discipline problems are often reduced.
Combining sentences 4 and 5 with the transition word "so" is the best way to revise the paragraph.
Thus, the correct option is D.
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