Identify the sentence that uses capitalization correctly.
a. Our company has a really nice outdoor recreation area that is mostly unused during the late fall, winter, and early spring, but is cleaned up every year just before Memorial Day weekend so that it is ready for summer.
b. Our company has a really nice outdoor recreation area that is mostly unused during the late Fall, Winter, and early Spring, but is cleaned up every year just before Memorial Day weekend so that it is ready for Summer.
c. Our company has a really nice outdoor recreation area that is mostly unused during the late Fall, Winter, and early Spring, but is cleaned up every year just before Memorial Day Weekend so that it is ready for Summer.
d. Our company has a really nice outdoor recreation area that is mostly unused during the late fall, winter, and early spring, but is cleaned up every year just before Memorial day weekend so that it is ready for summer.