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Let $f(x)=2^{5-2 x}$.$\newline$Below is Ibrahim's attempt to write a formal justification for the fact that the equation $f(x)=10$ has a solution where $-1 \leq x \leq 4$.$\newline$Is Ibrahim's justification complete? If not, why?$\newline$Ibrahim's justification:$\newline$$f$ is defined for all real numbers, and exponential functions are continuous at all points in their domains. Also, $f(-1)=128$ and $f(4)=\frac{1}{8}$, so $10$ is between $f(-1)$ and $f(4)$.$\newline$So, according to the intermediate value theorem, $f(x)=10$ must have a solution at some point between $x=-1$ and $x=4$.$\newline$Choose $1$ answer:$\newline$(A) Yes, Ibrahim's justification is complete.$\newline$(B) No, Ibrahim didn't establish that $10$ is between $f(-1)$ and $f(4)$.$\newline$(c) No, Ibrahim didn't establish that $f$ is continuous.