{{B}}quEstions 19 to 21 ArE BAsED on thE ConvErsAtion you hAvE just hEArD、{{/B}}

A．its low purChAsE priCE.
B．its wiDE AvAilABility.
C．its gooD nutritionAl vAluE.
D．its highEr wAtEr ContEnt.