Alphabetical test

Study the diagram of synapses- I. Which alphabet indicate the location of the receptor molecules ? II. Which alphabet points to a synaptic vesicles III. Which alphabet points to neurotransmitter IV. Which alphabet points to synaptic celft

If all the letters in the word MERCIFUL are rearranged in alphabetical order and substituted by the alphabet preceding, them in the English alphabet what will be the new .arrangement of letters? 1) BDHEKLQT 2) BDEHKLQT 3) BDEHLKQT 4) BDEJMLQT 5) None of these