Journey Through Space

As a one-dimensional continuum

As a three-dimensional continuum (correct)

As a four-dimensional continuum

As a two-dimensional continuum

It is a two-dimensional continuum

It is a one-dimensional continuum

It is a four-dimensional continuum (correct)

It is a three-dimensional continuum

Whether space is an entity

Whether space is a relationship between entities

Whether space is part of a conceptual framework

All of the above (correct)