I would need a picture to help you
1.weathered materials from rocks and transported to the beach through wind and rivers
2.from rocks weathering and eroding over thousands and millions of years.
Look at the world clock on your phone
Answer:
Fossil B belongs to the same period as the trilobite.
Explanation:
The reason for this is because both fossil B and the trilobite are together in the same rock section. Or period.
Hope this helps you out ; )