Select all the correct answers.
which two statements from the passage require more evidence to prove their accuracy?

a. the sentinelese people have survived on north sentinel island without the assistance of the outside world.
b. these laws also prohibit people from trying to communicate with the sentinelese people.
c. exposing the sentinelese to the outside world could cause them to lose their traditional way of life.
d. north sentinel island is surrounded by coral reefs, which act as a natural barrier.
e. they have managed to survive just fine without the machines and technology of the modern world.