E9E05 - Amateur Extra Class

E9E05 : What Yagi driven element feed point impedance is required to use a beta or hairpin matching system?
A Capacitive (driven element electrically shorter than 1/2 wavelength)
B Inductive (driven element electrically longer than 1/2 wavelength)
C Purely resistive
D Purely reactive
Correct Answer: Capacitive (driven element electrically shorter than 1/2 wavelength)