<em>The </em><em>right </em><em>answer </em><em>is </em><em>A</em><em>)</em><em> </em><em>tactical </em><em>decision </em>
Answer:
Technically air. The air is the only thing known that we can, "hold" without ever having to use our hands for any known reasons. We're holding air right now. When you inhale or hold your breath, your lungs are holding air.
C. $1.5 trillion
The US military spent $317 billion in 1981 and for the next 4 years increased its spending to $405 billion. This adds up to about $1.5 trillion over 5 years.