A signal that bladder is full is sent to the central nervous system( brain and spinal cord) by

When the bladder becomes full, the stretch receptors of the detrusor muscle send a signal to the pons, which in turn notifies the brain. People perceive this signal (bladder fullness) as a sudden desire to urinate, or urinary urge

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Explanation:

telophase and anaphase

i think that c)gold was found there

but i am not sure