Interpersonal communication skills are something we<u> learn, gain and practice</u> throughout our lifetime. We cannot say they are fixed because they <u>can improve and deteriorate </u>without any doubt, depending on if we work on them or not. They are not genetic due to the fact that every person can<u> learn </u>how to develop better interpersonal communication skills. We cannot treat them as impractical knowing that they <u>upgrade the relationship</u> we have with other people. So, the only correct and the only possible answer is <em>changeable.</em>
