Answer:
- The simplified expression is:

- The simplified expression is undefined for m=3
Explanation:
The given expression is:

The numerator can be siplified by using factorization and denominator will be simplified using the formula

So,

A fraction is undefined when the denominator is zero. In order to find the value of m on which the simplified fraction will be undefined we will put denominator equal to zero.
So,

Hence,
- The simplified expression is:

- The simplified expression is undefined for m=3
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I believe the question is asking which of the options is true about a cyber community. In that case, only D is true, as a cyber community, such as facebook or instagram, gives you that ability. The rest of the options only apply to a physical community.