Recently, Some Engineers and Scientists Have Proposed Building Spaceships with Enormous

Multiple Choice

Recently, some engineers and scientists have proposed building spaceships with enormous "sails" that catch the solar wind and use it to move the ship. What kinds of particles would be hitting this sail (i.e., what is the solar wind mostly made of) :

A) nuclei of heavier atoms such as iron and nickel
B) calcium atoms
C) electrons and protons
D) gamma-rays
E) scientists do not have any idea of the composition of the solar wind; it is very mysterious