B) Nervous System
Your Brain, spinal cord, and nerves are part of the large network of cells and fibers that transmit nerve impulses throughout your body.
The customer is probably having an allergic reaction to something on the seafood platter.
Answer:formal reasoning
Explanation: Formal reasoning is a type of reasoning which is concerned with valid or true arguments,formal reasoning is also a type of Reasoning in which the premise of a given action or information can be used to deduce the outcome of the processing of the premise. It is also concerned with abstract evaluation of premises to derive posible outcomes which can be linked with the premise,it is applied mainly in Arguments to get the true or valid judgement.