A trough is a low turning point or a local minimum of a business cycle. The time evolution of many variables of economics exhibit a wave like behaviour with local maxima (peaks) followed by local minima (troughs). A business cycle may be defined as the period between two consecutive peaks.
Answer: The answer would be your first answer option.
Explanation: The information given in your first option goes with the explanation of the example in the sentence.
The correct answer is because he would kill his father and marry his mother.
Even though Laius wanted to prevent this prophecy from happening, it eventually happened nevertheless - Oedipus killed Laius and married Jocasta, his mother, even though he did not know at the time who they were. That's where we have the Oedipus complex from.
The Articles of confederation did not give the national government any power to force taxes.
