The sentence that shows correct capitalization is: Last night I could see Venus and the Big Dipper. The correct answer is option C. The words Venus and Big Dipper have their first letters capitalized because these are examples of proper nouns. Proper nouns are specific names of a person, thing, place or an event. In this case, Venus is a specific name of a planet and Big Dipper is a specific name of a constellation.
It's better because you get to actually see your friends and be able to fun instead of learning on the computer and seeing your friends through the screen.