I searched for an image of a golden rectangle. I also found a similar question with the given choices:
a) CDEF is a square.
b)The length of CDEF is twice its width.
c)CDEF is not a golden rectangle.
d)CDEF is a golden rectangle.
MY ANSWER IS: d) CDEF is a golden rectangle.
I found phrase online with regards to golden rectangle which helped me arrived to my choice of answer.
"A golden rectangle with longer side a and shorter side b, when placed adjacent to a square with sides of length a, will produce a similar golden rectangle with longer side a + band shorter side a.
This illustrates the relationship {a+b} / a = a / b = φ"
