Context: Read the text.
Canoes and kayaks are both great for exploring lakes and rivers. Both are light boats, easy to paddle and good in shallow water. They're not exactly the same, though. Canoes are larger and more open, with space for two or three people and supplies. Kayaks are usually covered on top with an opening for just one person. A canoe paddle has a single blade, that is, just one end that dips into the water. The kayak usually has a double-bladed paddle instead. The kayaker paddles by dipping in one blade, then the other.
Which text structure does the text use?
A. compare-contrast
B. cause-effect
From the given choices, pick the correct answer and respond by indicating the letter of the correct option.

A