M∠NQS = m∠BQS - m∠BQN = 78 - 48 = 30°
Answer:
i would say A) But what you gotta do is look up the word of exponential decay and whatever it says will help you with The answer

- two acute angle=<JBC and <JBG
<JBC and <JBG(because these two angle are 45°)
by definition of acute angle any angle which is between 0°to 90° then it will acute angle
- two straight line=FH ,.AD
- two right angle=<GBD and <GBA
- two obtuse angle=<BCH and <BGF