Answer the questions at the end based on the text.

Jayson McCarthy, 12, was born without fingers on his left hand. That didn't stop him from being able to do many tasks. But Jayson could not grasp more than one object at a time. So Jayson 's father, Paul, created a Prosthesis , using a 3D printer. Now Jayson has fingers that open and close. "It was a do-it-yourself, father-and-son adventure," says Paul. When Jayson was a baby, his doctor advised his parents not to give him a prosthetic hand until he was in his early teens. "The doctor said Jayson should first learn to get full use out of the hand he was born with," says Paul. As Jayson got older, his father looked into _ a prosthetic hand, which can cost as much as $30,000. Paul found a more affordable solution. One day, Paul discovered a video on the Internet about Robohand, a prosthesis created with a 3D printer. He downloaded the free instructions and called Robohand's creators for advice. They told him all he needed was a 3D printer--which costs around $2,000--and some materials. Luckily, Jayson 's school had recently purchased a 3D printer and it offered to help Paul build the hand for Jayson n. "We used a soccer shinguard , cardboard , and tape. They cost about $10," says paul. With his new hand, Jayson can do things better. "I can help my mom more, because now I can carry two grocery bags," he says. Jayson 's father has already built several hands for Jayson. Jayson helps design each one. He says there's one thing in particular that he wants to do with a future prosthesis. "The goal," he says, "is to be able to tie my shoelaces ."

1. On what hand did Jayson have missing fingers?
2. How old is he now?
3. Who is Jayson's father?
4. How much would a prosthetic hand cost?
5. How did his father create one?
6. How much was 3D printer?
7. What was lucky regarding the printer?
8. Has Jayson's father been able to design any hands?
9. How many?
10. Who helps design them?
11. What is his goal with the prosthetic hands?
12. Who was the video on the internet about?

Numbered answers:
1. his left hand
2. 12
3. Paul
4. as much as $30,000
5. using a 3D printer
6. around $2,000
7. Jayson 's school had recently purchased a 3D printer
8. yes
9. several
10. Jayson
11. to be able to tie his shoelaces
12. Robohand