Gertrude is a junior marketing manager with many years experience at Camellia. She has been working at the company for over fifteen years. When the Marketing Manager Jason retired in April of 2020, Gertrude applied for the position of Marketing Manager. While she was optimistic that she would get the position, she was not successful and the position went to one of her much less qualified co-workers, Sam. When Gertrude sought feedback on her application for the promotion she was told Sams experience aligns better with the companys needs. Gertrude has since been accidentally CCd in on an email that states that Gertrude would not be an appropriate choice for manager due to the fact that she is a single mother with three small children and needs flexible working hours and sometimes needs to take leave days. Sam is in his 20s and has no children.

For this question, how can i advise Gertrude.? according to australian law. is it kind of discrimnation? pls explain me in IRAC way thanks.