If the glomerular filtration rate is too high, the macula densa sends a message tothe afferent arteriole. What is the effect of this message?

A、Granularcellsofarteriolewallsreleaserenin.;
B、Afferentarterioledilates.;
C、ItinhibitstheactionofATPandadenosineontheafferentarteriole.;
D、Afferentarterioleconstricts.