Jeremiah wants to$,$ one day, create a software that is hacker$-$proof. He imagines a world in which no more annoying and malicious viruses can attack a computer. His job at a local IT firm helps him to keep his skills sharp, and he often tinkers with computers at home, a hobby he enjoys.

Which element of the scenario best represents a meaningful life?

a$.$ IT job

b$.$ tinkering with computers

c$.$ imaging a better world

d$.$ hacker$-$proof software creation