"X" died leaving spouse ("Y") and two children : "A" and "B" "B" has two children of his own: "1"and "2". In her Will , "X" appoints "Y" as her universal heir. Value of the inheritance 45 ud. "B" dies before "X". There is no subtitution clause. Spanish Law applies. choose all the correct options, listed below: a) "Y" is entitled to the usufruct over 1/3 of the inheritance b) "1" is entitled to 7.5 ud ( 3.75 legal share) + 3.75 ( bare ownership improvement) c)"A" , "1" and "2" and "Y" become legal heirs entitled to inherit 1/4 of the inheritance each. d)"A" is entitled to 30 ud