Answer:
D) a person’s written signature
Step-by-step explanation:
A) wouldn't work because I don't think you wouldn't need to magnify a word for a report card.
B) might work because her dad may need to print something boldly on the paper, but not likely.
C) wouldn't work because you could always sign a report card in pencil or something else or have a stamp it
D) makes the most sense because most report cards require a parent signature on them to bring back to school because the school/teachers want to know that the parent has seen the report card