Which of the following Antihypertensive agents has no adverse effect on Glucose tolerance.. 3 only

Which of the following Antihypertensive agents has no adverse effect on Glucose tolerance?
1-metoprolol
2-atenolol
3-captopril

a. 1 only
b. 3 only***
c. 1 and 2i
d. 2 and 3i
e. 1 , 2 and 3