D.<span>All of the above are true.
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<span>Social mobility is the movement of individuals, families, households, or other categories of people within or between social strata in a society. It is a change in social status relative to others' social location within a given society.</span>
The united states has 2 court systems
A bill becomes law if signed by the President or if not signed within 10 days and Congress is in session. If Congress adjourns before the 10 days and the President has not signed the bill then it does not become law ("Pocket Veto.")
A unified group of countries, the Communist bloc was located in central and Eastern Europe, East Asia and Southeast Asia under the hegemony of the URSS. This bloc was denominated as Eastern bloc. And encompassed countries such as Poland, Romania, Bulgaria, Hungary and several other European countries. This was a group that was led by the mighty Stalin of USSR.
