PLZZZ HELP ASAP THANKS : A round red ball is an example of

Physical change
Chemical change
Physical property
Chemical property

Explain why?

Thank you greatly appreciated!

clinically, some people often have repeated allergies, eczema and respiratory infections or other parts of the infection, in this case, in addition to some routine tests such as tests for white blood cells, immunoglobulin series, lymphocyte subsets, etc., the five immune immunoglobulin tests are also necessary.