Answer:
A.
Explanation:
The Facial Feedback Hypothesis is the theory that states the facial expression affects one's emotional state. This theory is based on the theories developed by Charles Darwin and William James.
<u>To prove this theory right, an experiment with a pen or pencil was done. In this experiment, the participant was asked to hold a pen or pencil in the mouth between the teeth which will force the edges of the lips to raise tend to make the person smile. This activity will make the person feel happy according to the facial feedback hypothesis. This hypothesis suggests that the facial expressions have the power to change the emotional state of a person as well</u>.
So, the correct answer is option A.
The negative price concerned only contracts for delivery of barrels in May that are traded on so-called futures markets. At the same time trading happens for May deliveries, people trade on contracts ending in June, in July and so on. ... The May contracts that fell so much ended on Tuesday
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African national Congress is the republic of South Africa's governing political party. It has been the ruling party of post apartheid South Africa on the nàtional level, beginning with the election of Nelson Mandela in the 1994' s election.
