How to redefine this integral so it meets some requirements, $\int g(x)\ln|x| \mathrm dx$

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Let $$ G(t)=\int_{0}^{t} g(x)\ln|x| \mathrm dx$$

Give conditions over $g(x)$ so that $G$

1.It is defined near $0$.

2.Be continuous in $t=0$.

3.Be derivable near $0$

4.Give the value of $$\lim_{t\to0} \frac{G(t)}{3t}$$


Questions about reasoning:

  1. I have several questions about this. First of all, if a function (in this case G) is defined with an integral, can it not be be defined, in this case, in $0$. Is it an improper Integral

  2. If i define g(x) so that $g(x)\ln|x|$ is continuous in t=0 that would mean(by theorem) that $g(x)\ln|x|$ can be integrated there and by, another theorem, that G is continuous ?

I don't know. Any help thinking this through ?

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I would take $$g(x)=x$$.

Then $$G(t)=\ln|t|\frac{t^2}2-\frac{t^2}4$$

It can be easily seen that all requirements are met and the limit is $0$.