Final answer:
The question seems to reference a specific narrative, but without additional context regarding the characters Emma and Sissy, it's not possible to provide a definite answer. The information provided relates to a painting by The Lowry and does not detail any sweatshirt character imagery.
Step-by-step explanation:
The student's question about what character is on the sweatshirt that Emma offers Sissy seems to refer to a specific narrative or text. However, without a clear reference to this narrative or text, it's not possible to provide an accurate answer.
In the context of art, the reference provided mentions a painting titled Poppy, Esme, Oleanna, Gracie, and Kate by The Lowry, which depicts Esme and her friends after having their ears pierced, symbolizing a moment of growing up and changing power relations amongst the girls.
This painting includes visual elements such as casual clothing, Joffe's use of stripes, and a minimal background. The information doesn't directly answer what character might be on a sweatshirt offered by a character named Emma to another character named Sissy.