Main Answer:
Option 1: Yes, if the context of the comparison is provided.
Step-by-step explanation:
Proportionality is a relationship between two quantities where they maintain a constant ratio or scale factor. In the case of an ostrich running at a speed of 43 miles per hour, proportionality can be established depending on the context of the comparison.
If the comparison is made within the context of, for example, comparing speeds of different animals or assessing changes in speed over time, then the speed can be considered proportional within that specific context.
However, without additional information about what is being compared or how the speed is being evaluated, it's challenging to definitively determine proportionality.
Therefore, the answer depends on the context of the comparison or evaluation of the ostrich's speed. If the context is specified, it could be proportional within that defined context.