Final answer:
Aven's hobby in regard to her lack of arms was knitting.
Step-by-step explanation:
In regard to Aven's lack of arms, her hobby was knitting. Despite her physical limitation, Aven found joy and fulfillment in creating beautiful knitted items.
Knitting allowed her to express her creativity and engage in a productive activity that she enjoyed. It also provided her with a sense of accomplishment and purpose.