Atmosphere Unit Test i need the right answer

Question

What most likely increases the salinity of an ocean region?(1 point)
Responses

the thawing of a large iceberg
the thawing of a large iceberg

the evaporation of seawater
the evaporation of seawater

increased precipitation
increased precipitation

runoff from a large river

Answer 1

runoff from a large river

Answer 2

is that right

Answer 3

No, the correct answer is:

the evaporation of seawater