Assertion (A): Endocrine glands are ductless glands.
Reason (R): Hormones of endocrine glands directly enter in the blood circulation.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.