average of 15 results is 43. if the average of first 7 results is 41 and average of last 7 results is 45 then find the eighth result?	Select the correct option
A) 41  B) 39  C) 43  D) 45  E) 47
<gadget id="calculator">15 * 43</gadget>
<output>645</output>

<gadget id="calculator">7 * 41</gadget>
<output>287</output>

<gadget id="calculator">7 * 45</gadget>
<output>315</output>

<gadget id="calculator">287 + 315</gadget>
<output>602</output>

<gadget id="calculator">645 - 602</gadget>
<output>43</output>

<result>C</result>
average of 15 results is 43. if the average of first 7 results is 41 and average of last 7 results is 45 then find the eighth result?
subtract(multiply(15, 43), add(multiply(7, 41), multiply(7, 45)))
option ' c '