Answer:
A. Knowing that the attack might reach us in all too short a time, we
immediately began greatly to increase our industrial strength and
our capacity to meet the demands of modern warfare.
Explanation:
The attack is coming quickly so the logical thing to do is to prepare. The other examples are motivational or pathological statements while the first one (A) uses a clear and methodical string of thought to find a solution for the coming attack.
(If a picture type thing helps you: attack coming soon---what do we do?---begin to prepare for the attack immediately.)
 
        
                    
             
        
        
        
Letter B has all the correct capitalization in all places
 
        
                    
             
        
        
        
Proceeded 
forlorn ( i believe) 
timid (or timited)
Picture
Furnish
hope this helps
This is what i believe these are 
        
             
        
        
        
Answer: This is the best I cold do if it is not what you are looking for sorry:)
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