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Satisfying Given Conditions: Find a Missing Digit

GMAT-L6YVGU

Let $X$ represent the third digit in the number $56X4.5$. This number is rounded to the nearest $10$ and divided by $2$, leaving a remainder of $1$.

Which value of $X$ satisfies the conditions above?

A

$0$

B

$2$

C

$3$

D

$8$

E

None of the above numbers is a possible value.