Do Endocrine Glands Produce a Steady Stream of Hormones

Multiple Choice

Do endocrine glands produce a steady stream of hormones?

A) Some like the thyroid do, others like the pituitary do not.
B) No, hormone release tends to be pulsatile; they are released in brief bursts.
C) Some like the pituitary do, others like the thyroid do not.
D) Yes, each gland continually releases a small regular amount of its hormone