Use the Data Given Below to Answer the Following Question(s)

Use the data given below to answer the following question(s) .
Following is an extract from the database of a construction company.The table shows the height of walls in feet and the cost of raising them.The estimated simple linear regression equation is given as Ŷ = b0 + b1X.(Hint: Use Excel functions) .
$$\begin{array} { | r | r | } \hline \begin{array} { l } \text { Height } \\\text { (ft) }\end{array} & \text { Cost (\$) } \\\hline 4 & 670 \\\hline 3 & 430 \\\hline 7 & 810 \\\hline 9 & 1100 \\\hline 6 & 790 \\\hline 8 & 880 \\\hline 5 & 760 \\\hline 11 & 1200 \\\hline\end{array}$$
-The R² value:

A) is the variability of the observed Y-values from the predicted values.
B) indicates that as the independent variable increases, the intercept term does too.
C) gives the proportion of variation in the dependent variable that is explained by the independent variable.
D) transforms the cumulative probability scale (vertical axis) so that the graph of the cumulative normal distribution is a straight line.