It is not possible to determine which statement is true without specific information about the rational approximations and what they are approximating.
The statement that is true about rational approximations is that they are a way of representing irrational numbers as fractions (ratios) of two integers. By using rational approximations, we can obtain an estimation of an irrational number to a desired level of accuracy. This is achieved by finding rational numbers (fractions) that are close to the irrational number in question. The closer the rational approximation is to the irrational number, the more accurate the estimation becomes.
