Answer: a. True
Explanation:
The purpose of the joint operations is to safeguard national interests, not only in war, but also by protective steps aimed at discouraging future opponents who are likely to challenge the vital interests of the United States or its allies. 
Joint operations principles are based on the traditional values of war. Three additional principles refer to how offensive power is used by the United States Armed Forces across the continuum of military operations: discipline, perseverance, and legitimacy.
 
        
             
        
        
        
"The economic development boards of Singapore and Malaysia and China and many of these countries are visiting regularly the executives of US companies so that US companies would invest in their (Singapore, Malaysia, China and so forth)  countries" is FALSE.
<u>Option:</u> B
<u>Explanation:</u>
The invisible hand is the non-observable market mechanism that inevitably allows the demand and supply of products in a free market to reach equilibrium.
An instance of an invisible hand is an individual who makes a decision to purchase coffee and a bagel to make things better, that persons opinion will make financial society better off as a collective. Thus United States did not make investments based on free trade, an invisible hand strategy.
 
        
             
        
        
        
Because it helps increase the money the government is receiving. and or because they want the people in the country to buy from one another and not export and import it 
        
             
        
        
        
A. some women put their careers on hold to have children