Answer:
B.
Step-by-step explanation:
Tetany is a bacterial infection caused by a neurotoxin produced by the bacterium Clostridium Tetani which curses with generalized muscle contractions and painful muscle spasms.
Parathyroid gland regulates the calcium and fosfate metabolism, and therefore any alteration leading to low or high levels of this hormone will affect the equilibrium of these two minerals generating symptoms as cramps, fatigue, pain, palpitations and others. The main cause maybe a tumor and it is not related to tetany.