Let Us Suppose We Are Predicting the Score on a Training

Let us suppose we are predicting the score on a training posttest from the number of years of education and the score on an aptitude test given before training. Here is the regression equation: Y = 25 + .5X₁ +10X₂,
Where X₁ = years of education and X₂ = aptitude test score.
Which of the following are true about this equation?

A) The equation is a simple regression analysis
B) The regression coefficient for aptitude test controls for years of education
C) The equation is in standard score form
D) For every unit change in X₁, there is a 10 unit change in Y