Given the declarations below, using the substr function, which statements will assign "First" to the name$1$ variable and "Last" to the name$2$ variable?

string name $=$ "First Last"; $//$ note the space between First and Last

string name$1=""$;

string name$2=""$;

a$.$

name$1=$ name.substr$(1,5)$;

name$2=$ name.substr$(6)$;

b$.$

name$1=$ name.substr$(1,6)$;

name$2=$ name.substr$(6)$;

c$.$

name$1=$ name.substr$(0,5)$;

name$2=$ name.substr$(6)$;

d$.$

name$1=$ name.substr$(0,5)$;

name$2=$ name.substr$(5)$;