The best way to punctuate the bolded portion of the quotation is the following:
C. them."-C.S. Lewis
This is the best way considering that the sentence ends on 'Lewis'. Periods always go inside quotations, as you can see from this brief description between different citing standards.
MLA: Commas and periods directly following quotations always go inside closing quotation marks. Question marks can vary depending if the question is part of the quote, then the punctuation mark goes inside the quotation marks. If the question is not part of the direct quote, it goes outside.
AP: All punctuation goes inside the closing quotation marks. This includes commas, periods, question marks and exclamation points.
Chicago: Periods and commas always go inside quotation marks. Question marks and exclamation points that are part of the original quote are included inside quotation marks.
The fist book written in American was "The Whole Booke of Psalmes" edited by Richard Mathew, John Eliot, and others.
Answer:
"We decided to place the motor to one side of the man, so that in case of a plunge headfirst, the motor could not fall upon him" "To provide against the machine rolling over forward in landing, we designed skids like sled runners, extending out in front of the main surfaces"
Explanation:
The two passages explain the injury preventative measures taken by the brothers to prevent any sort of accident, further proving a point of safety in their design