Question

Look at the excerpt of informational text. Which of the following is a heading? What Causes Tides?The daily rise and fall of Earth's waters on its coastlines are called tides. As the tide comes in, the level of the water on the beach rises gradually. When the water reaches its highest point, it is high tide. Then the tide goes out, flowing back toward the sea. when the water reaches its lowest point, it is low tide. Tides are caused by the interaction of Earth, the moon, and the sun.produces a neap tide, Neap Tides In between spring tides, at the first and third quarters of the moon, the sun and moon pull at right angles to each other. This line-up a tide with the least difference between low and high tide. During a neap tide, the sun's gravity pulls some of the water away from the tidal bulge facing the moon. acts to "even out the water level over Earth's surface, reducing the difference between high and low tides.
A)Neap tides
B) what causes tides?
C) tides are caused by the interaction of earth, the moon, and the sun.
D) “even out”

Answer 1

The purpose of informational text is to inform the audience.  While this excerpt is about tides, the central idea or main focus is the Neap Tides.  The question of "What causes tides?" is a lead in question to get the readers interested in the article; therefore, B is not a good answer, nor is D since it does not tell you anything about what you are going to read (as a title should do that).  Having a full sentence as a title is not good writing either, so A is the best answer.