Read this passage from the article:
Glass "hot houses" became more common in the late 1700s, allowing growers to create enclosed pineapple-friendly climates. Later, pineapple farms cropped up in tropical lands like the Philippines and Hawaii. Canning and improved shipping made global distribution possible.
The author's purpose for writing this passage was to __________.
detail the origins of pineapple farms in tropical lands
argue that "hot house" pineapples taste better
explain why pineapple is no longer a rare treat
explain why pineapples are still very hard to find