The answer is: [D]: "higher" .
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Note:
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Choice: [A]: "more high"; — is grammatically incorrect at all costs.
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Choice: [B]: "highest" ; — is the "superlative" — NOT the "comparative".
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Choice: [C]: "more higher"; — is grammatically incorrect at all costs.
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Choice: [D]: "higher" — is the comparative form and is grammatically correct.
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'Arithmetic is frustrating' is an example of <span>predicate position.</span><span>
Hopefully this has helped! :)</span>
The answer is are because its a verb that is stating something.
<span> Ivan is discussing with two of the monks his article on the position of the ecclesiastical courts. He explains that he opposes the separation of church and state primarily because when a criminal needs to be punished, the public should not have to rely on the state to administer such punishment. Ivan states that if the church had the authority to punish and also to excommunicate the criminal, then a vast number of crimes would be diminished. To a degree, Father Zossima agrees, but he points out that the only effective punishment "lies in the recognition of sin by conscience.</span>
In your essay give specific details and don't vague if it is not related to the topic you are writing about, is not important.