Problem 3: Below cathodal pulses are shown, one that is just subthreshold (A) and a pulse that is just above threshold for activation (B). The sign...

Requesting your help with the enclosed problem 3 below. Thank you very much.

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Problem 3: Below cathodal pulses are shown, one that is just subthreshold (A) and a pulse that is just above threshold for activation (B). The sign of the "A" and "B" pulses represent magnitude only,and are thus positive. As we discussed in class, cathodic current is negative in sign. You may not change either of these pulses. Use the pulse letter in your sketches to indicate which portionof the sketch is the original pulse. Please write your answer with the "A" and "B“ portions of the pulse going positive in sign. Again,this is opposite of the sign convention in class, but let’s keep it consistent for this problem. You may design the second "add-on" pulse to be of any shape, as long as the pulse is of thecorrect sign, and the overall pulse maintains charge balance. As the problem states, please draw the overall pulse, which means both the "A" or "B" pulse,and the add-on pulse that you designed. A B a. Design and sketch a charge balanced pulse that will activate a nerve using A.