The sentence does not contain any errors in period usage is letter (A)<span> Have you read The Hobbit by J. R. R. Tolkien? Letter B is lacking a period after 'Lt'. Letter C lacks period after 'Rev' and letter D lacks a period right after the word 'Sgt.' As much as possible, contracted titles should have periods right after it.</span>
It would be a subordinate cause, for it can't stand on its own. Think about it: Since early this morning. What happened since early morning? Since it doesn't provide that information, it wouldn't be able to be an independent cause.
Also, I don't believe that the sentence is grammatically correct :)
Answer:
Deceitful and cruel
Explanation:
According to President Roosevelt, the Japanese was selfishly taking advantage of their ability to be destructive by performing such a dangerous act as soon as they could. Therefore, they were labeled as deceitful and cruel.
(I know that this answer is right because I worked on it on common lit)