【单选题】About 79 million Americans have pre-diabetes(糖尿病前期). That means they have blood sugar thats higher than normal but not high enough to be diagnosed(诊断)with type 2—at least not yet. One long-term study ...
A.
Pre-diabetes will surely become type 2 diabetes.
B.
Pre-diabetes is likely to become diabetes within years.
C.
Enough attention should be paid to the treatment of type 2.
D.
Pre-diabetes is ranked No. 1 danger threatening Americans' health.