Which of the following is the least likely space for presenting a play?

A large hallway tends to be the least suitable space for presenting a play primarily due to its design and functionality. Hallways are typically transitional spaces meant for movement between areas, which do not offer the necessary acoustics, staging, or seating arrangements conducive to theatrical performances. These physical constraints can interfere with the audience's ability to engage with the performance and the actors' ability to project their voices effectively.

In contrast, large auditoriums are specifically designed for performances, providing seating and sound amplification, while school gymnasiums, despite their primary use for sports, can be adapted for performances with adequate space and seating arrangements. Classrooms, though smaller, can be utilized for more intimate shows or rehearsals, often making them a flexible option for limited productions. Thus, the characteristics of a large hallway make it the least practical choice for presenting a play.