15 POINTS PLS HELP!! Which answer best explains one of the reasons that oceans are salty?

The oceans have always been salty

Water is removed by deep ocean vents

Salt comes from small ocean organisms

Water from streams and rivers carry salt to the ocean

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397