whiCh oF thE Following is not mEntionED As A CAusE oF thE CurrEnt DEClinE in thE mExiCAn EConomy
A、FEwEr joB opportunitiEs in mExiCo.
B．strong tiEs with thE u.s. EConomy.
C．DEClinE in tourism.
D、DEClinE in tAx rEvEnuEs.