Question

what they did not know was how turtles find the exact beach where they were born. why did the author include the above sentence in the article? a to show that sea turtles prefer living near the beach where they were born b to show that scientists disagree on how sea turtles go back to the beach where they were born c to show that sea turtles have a complex magnetic sense that leads them back to the beach where they were born d to show that sea turtles have an exceptional memory that helps them find their way back to the beach where they were born

Explanation:

The sentence states that "they" (likely scientists) did not know how turtles find their birth beach. Option A is incorrect as the sentence is about the unknown method, not preference. Option C and D propose specific methods (magnetic sense, memory) that the sentence says was unknown, so they are wrong. Option B aligns as the unknown method could lead to scientific disagreement on how turtles return.

Answer:

B. to show that scientists disagree on how sea turtles go back to the beach where they were born