A nurse is teaching a client about the purpose of a fecal occult blood test (FOBT). Which statement by the client demonstrates correct understanding of why this test is performed?

It detects blood in my stool that I might not see but could indicate colon problems.

It helps identify bacterial infections in my stool such as Clostridioides difficile.

It detects visible blood in stool to confirm bleeding from hemorrhoids.

It measures the amount of iron in my blood to assess anemia.