HI please help me answer these true or false questions

you may find the sources in the marriage contract south african law

The following statements relate to prohibited degrees of relationship. Answer whether True or False and provide a reason in which you state why the parties may or may not legally marry each other. One mark will be awarded for correctly indicating whether true or false; Two marks will be allocated for the correct reason/explanation; and One mark will be allocated for skill. (1.3.1 Sharnel may marry her father-in-law Lionel after she divorces Lionel's son. (4) (1.3.2 Uncle John may marry his niece, Sarah. (4) (1.3.3 Sunitha may marry her cousin, Trevor. (4) (1.3.4 Barry may marry his adopted sister, Lenore. (4) (1.3.5 Johan may marry his adopted daughter Lerato, after his wife Mienkie dies. (4)