Christina Was Bitten by a Black Widow Spider While Retrieving

Christina was bitten by a black widow spider while retrieving some wood for her fireplace.Her abdominal muscles began to contract painfully,which was to be expected because black widow spider venom​ 

A) inhibits release of acetylcholine (ACh) at the neuromuscular junction. 
B) competes with acetylcholine (ACh) at nicotinic receptor sites. 
C) promotes greater than normal release of acetylcholine (ACh) at the neuromuscular junction. 
D) interferes with GABA inhibition of the motor system by blocking receptors.

Correct Answer:

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