Here Is a Regression Equation Using GSS2008 Data

Here is a regression equation using GSS2008 data. The independent variables are two reference group variables, one for blacks and one for others (those not white and not black) . Therefore, whites are the reference group. The dependent variable is the number of siblings the respondent has.
SIBLINGS = 3.36 + 1.61 (BLACK) + .87 (OTHER)
If we had run a similar regression, but with blacks as the reference group, what would the resulting equation likely have looked like?

A) SIBLINGS = 3.36 +1.61 (WHITE) + .87 (OTHER)
B) SIBLINGS = 3.36 + 1.61 (BLACK) + .87 (OTHER)
C) SIBLINGS = 3.45 + 1.52 (BLACK)
D) SIBLINGS = 4.97 - 1.61 (WHITE) - .74 (OTHER)