Adelle receives an artificial hip to ease her arthritis. Kwan receives a pacemaker to regulate his heartbeat. Hector receives a replacement heart valve from a cow. Denise receives a kidney donated by her identical twin.
Which surgery is most like the way a transgenic organism is made?

Options:
- Adelle receives an artificial hip to ease her arthritis.
- Kwan receives a pacemaker to regulate his heartbeat.
- Hector receives a replacement heart valve from a cow.
- Denise receives a kidney donated by her identical twin.

Hector receives a replacement heart valve from a cow.