In Principal Component Analysis and Factor Analysis, How Do the Equations

Multiple Choice

In principal component analysis and factor analysis, how do the equations used to calculate factors differ from a conventional linear model (i.e. Y = b₀ + bx + E) ? (You may select more than one option.)

A) No intercept (b₀)
B) No gradient (b)
C) No error (E)
D) The equations are exactly the same.