After giving nearly 5,000 people a second chance at life, doctors are celebrating the 25th anniversary of Britian's first heart transplant which was performed at Cambridgeshire's Papworth Hospital in 1979.
Can we infer the following?
Britian's first heart transplant which was performed at Cambridgeshire's Papworth Hospital before 1990.

Choose your answer from:
[I] Yes.
[II] It's impossible to say.
[III] No.
The answer is:
[I]