Restitution is available when: a. Elizabeth agrees to sell an acre of land to Vanessa, and after Vanessa makes a partial payment Elizabeth wrongfully refuses to
transfer title.
b. Lawrence makes an oral contract to provide physical training for Lee for fourteen months and Lee discharges Lawrence after six months.
c. Gilbert uses undue influence to induce Cynthia to sell him an antique chair for $10.
d. Restitution is available in all of the above cases.

u idek                                                                                                                                               /

what he said above me         look up that's the answer

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.