<em><u>Propaganda</u></em> would not be the correct answer, as propaganda is biased information, usually used to promote a political point of view towards the public. This definition does not match with the question.
<em><u>Recruiting</u></em> would not be the correct answer, as recruiting is when you enlist someone into the army. This definition does not match with the question.
<em><u>Rationing</u></em> would not be the correct answer, as rationing generally means saving a limited amount of something by allowing each person to have a certain amount. This definition does not match with the question.
<em><u>Mobilization</u></em> would be the correct answer, as mobilization is the government preparing troops for things like war. This definition does in fact match with the question.