Concept:Freshwater fish are species that live mainly in rivers, lakes, and ponds.
Explanation:Sardines and herrings are mostly marine or saltwater fish.
Salmon is known for migrating between salt water and fresh water, so it is not strictly a freshwater fish.
Tilapia, however, is a common freshwater fish found in rivers, lakes, and ponds.
Therefore, among the given choices, tilapia is the correct freshwater species.
Answer:Tilapia (Option B)