A traffic signal will only be operated if signal a is green or signal b is red and signal c is green or signal d is yellow if green is 1 , red is 0 what would yellow be?

you are welcome for my answer it is b⇔⇒⊕

the correct answer is "part of speech" if the portion used is "verb, noun" there is another question similar to this with the same question but different portion. the other portion is "hand write" and the correct component for that question is "antonym".

hope this . : )

it is actually 55 mph i have done this question already