Select the option that best explains the information conveyed in the sentence Our school field is bigger than yours.

The sentence "Our school field is bigger than yours" conveys a comparison of size between two school fields. This sentence clearly indicates that our school field is larger in size compared to your school field.

Now let's examine the options:

• Your school is bigger than ours: This option talks about the overall school size, not the field. It contradicts the original sentence because it implies your school is bigger, which is not discussed in the context of fields.
• Your school is not bigger than ours: This option, again, refers to the schools instead of just the fields. It might align with the general notion, but it does not directly address the field size comparison.
• Our school field is as big as yours: This implies that both fields are of the same size. However, the original sentence clearly states that our field is bigger, not equal in size.
• Your school field is not as big as ours: This option accurately paraphrases the original comparison by saying that your field is smaller than ours, maintaining the original meaning and focus on field size.

Thus, the option that best explains the information conveyed in the sentence is "Your school field is not as big as ours."