The figure below shows a graph of the scale factor, RU, with time, for three different scenarios.The age of the universe is the difference between now and the time at which RU is zero.Which curve illustrates a universe that is expanding at a constant rate? 
Definitions:
Fully Functioning Human Being
A term by Carl Rogers describing an individual who lives in harmony with their deepest feelings and impulses.
Opinions Of Others
The beliefs or views held by individuals other than oneself, which can impact one's self-esteem and behaviors.
Deprecated
Often referred to in technology and software, indicating that a feature, service, or practice is outdated, superseded, or no longer recommended.
World War II
A global conflict that lasted from 1939 to 1945, involving most of the world's nations and culminating in significant globally transformative events.
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