The initial adverb "therefore" is set off with a comma to make the phrase simpler to read or to indicate a pause. The subject and verb in the original sentence do not agree. "Differ" fits with "rules," a plural topic.
By combining an apostrophe with the letter s, an apostrophe can indicate a noun's possessive case. An apostrophe can be used to denote a plural noun or a noun with a s at the end. The plural version of the term should contain an apostrophe after s because the paragraph mentions many islands.
All motorists who fail to exercise the proper level of care are being negligent. The main premise must demonstrate a link between negligent driving and vehicle drivers who violate the duty of care in order to support the finding that Darlene was at fault.
Perhaps Plato will die. A significant premise in the first statement is that some people are mortal, which establishes a general concept that is assumed to be true. A minor predicate in the second phrase establishes that a particular individual is a human being. However, the test-taker must understand that the primary premise is not an immutable fact before drawing a judgment. By claiming that Plato (a human person) falls within the principle stated in the major premise and that this conclusion is constrained by the same restriction as the major premise, Answer B effectively ties the major and minor premises together.
Remove the hyphen from highly intriguing. Since profoundly is an adverb that modifies absorbing, deeply is not a compound adjective. The -ly suffix makes it clear that the hyphen is not required.
They are is shortened to "they're." A general possessive pronoun is "their." It effectively displays having the "proper hands."