Marking brainliest for correct answer Which best describes the likely direction of the movement of the African and Arabian plate?

A) The African plate is moving east and the Arabian place is moving west

B) The African plate is moving north and Arabian plate is moving south

C) The African plate is moving west in the Arabian plate is moving east

D) well plates are moving west

Lab reagent, hypothesis test. a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl. these six measurements are assumed to be an srs of all possible measurements from solution. they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution. carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.