Answer: false
Explanation: The sentence says:
"Costa Rica and Panama share a
jungle that to the day has not been explored"
It is true that Panama And Costa Rica share a big tropical jungle, but is false that it has not been explored (while this jungle has some dense and dangerous parts, it has been explored to an extent), so the sentence is false.
Answer: A) el vinculo
Explanation: The question and A both mean the link
the correct answer would be the 4th one ju changes to jue
juego
juegas
juegan
jugamos
jugáis