The Renaissance began in Italy partly because Italian city-states were wealthy. The answer to your question is A. I hope this is the answer that you are looking for and it comes to your help.
You should ask your teacher to be sure, but I think that you teacher meant like the mode of transmission.... Like genetically inherited and such.
Answer
Explanation: As soon as sodium touches your tongue, hydrogen is released with tremendous heat. Most likely an explosion will take place in your mouth. So maybe it won't be a good idea to try it unless thats what you want
A target cell respond to a hormone because it bears receptors
