Thirst can be

A. True   Stimulation of osmoreceptors by the increased tonicity generates thirst sensation.

B. True   The supraoptic nucleus of the hypothalamus contains osmoreceptors.

C. True   This can happen, even though blood tonicity is unchanged; volume receptors may be involved.

D. False   ADH secretion is increased.

E. True    Flushing out the mouth with water can provide temporary relief from thirst.