What is one of the most effective ways to stop invasive animal species from entering the Great Lakes ecosystem?

Question

Responses
A Using effective biocides to kill the invasive species.Using effective biocides to kill the invasive species.
B Making an extensive invasive species collection record for the Great Lakes region.Making an extensive invasive species collection record for the Great Lakes region.
C Inspecting entering boats to stop the inflow of invasive species into the Great Lakes.Inspecting entering boats to stop the inflow of invasive species into the Great Lakes.
D Giving presentations to schools throughout the state so students can share this information with their parents.

Answer 1

C Inspecting entering boats to stop the inflow of invasive species into the Great Lakes.