What you have to bear in mind is to make the compound charged, in order that it will be soluble in water than in ether. You should make the pH basic for acid as in the salt compound in order to cause the acid to dissolve in the water layer.<span> </span>
The basic solar nebular disk model (SNDM), developed by Russian astronomer Victor Safronov, and was made available in English in the early 1970's. So your answer is B.<span />