Final answer:
If the moon were larger, the path of totality during a total solar eclipse would be wider, as a larger moon would cast a greater shadow over the Earth.
Step-by-step explanation:
If the moon were larger, its shadow on the Earth during a solar eclipse would cover a greater area. This would not affect the brightness or speed of the Moon's travel, but would influence the size of the path of totality. The correct answer is c. wider. The path of totality is the area on Earth's surface over which a total solar eclipse is visible. When the Moon is larger, it casts a larger shadow, hence creating a wider path of totality. This wider path allows more observers on Earth to experience a total eclipse, assuming they are located within the shadow's reach.
In contrast, the duration of totality, which is the length of time the sun is completely obscured by the moon at a given location, would not necessarily change significantly unless the Moon's orbital speed also changed.