Answer:
Not Practical  and not Possible
Explanation:
Signals are used whenever voice communication is not practical and not possible.
Speech signals are transmitted using telephone channels. The voice signals are transferred using the telephone set to the local telephone exchange and then to the receiving party.
In electronics and telecommunications, the signal is described as any electromagnetic wave or current that transfers information.
 
        
             
        
        
        
“The cough is a mere nothing. It will not kill me. I shall not die of a cough” this part of the passage is very ironic because he really won’t die of a cough but he is explaining the cough to be nothing for him to be worried about
        
             
        
        
        
Answer:
a
the answer is a needle, hope this helps
 
        
             
        
        
        
Answer: C. It is based on evidence from the text and other reliable sources.