Which sentence uses correct capitalization?
a. most people in london speak 1, but many speak other languages also.
b. is commonwealth avenue the longest street in boston?
c. which planet has rings around it, saturn or jupiter?
d. there is a real egyptian mummy in the metropolitan museum in new york city.
is it d

B. Is Commonwealth Avenue the longest street in Boston.
It isn't A because when using numbers under ten, you use the word not the number.
It isn't C because Saturn and Jupiter are planets and should have capitals.
It isn't D because Egyptians should be capitalized.
It's C because "Is" is the beginning of the sentence so it should be capitalized. Commonwealth Avenue is a street name so it should be capitalized. And Boston is a city so it should also be capitalized.