Vamos a intentar dar contestacion stisfatoria a tamaña pregunta.
lOS RAZONAMIENTOS SON BASICOS :
A aaaaaaaaaaaaaaaaaaaaa
b vvvvvvvvvvvvvvvvvvvvvvv
c vvvvvvvvvvvvvvvvvvvvvvv
d ccccccccccccccccccccccccccccc
e ddddddddddddddddddddddddddddddddddddddddddd
Y si son pocos seguiremos pensando mas.