In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

[Q]: Which of the following would have best aided a vessel at sea in crossing the sea in the 18th century? (A) A radar system (B) An old soothsayer (C) An experienced navigator (D) A crow's nest
[A]: C


[Q]: When there is an increase in atmospheric temperature, then (A) glaciers become too large (B) global sea level decreases (C) Antartica and Greenland icebergs will melt (D) Earth absorbs less sunlight
[A]: C


[Q]: Due to weathering (A) large submarines are built (B) new bikes are raced (C) holes in the pathway (D) 2nd story houses are built
[A]:
C