Answer:  A & C
<u>Step-by-step explanation:</u>
HL is Hypotenuse-Leg
A) the hypotenuse from ΔABC ≡ the hypotenuse from ΔFGH
    a leg from ΔABC ≡ a leg from ΔFGH
    Therefore HL Congruency Theorem can be used to prove ΔABC ≡ ΔFGH
B) a leg from ΔABC ≡ a leg from ΔFGH
    the other leg from ΔABC ≡ the other leg from ΔFGH
    Therefore LL (not HL) Congruency Theorem can be used.
C) the hypotenuse from ΔABC ≡ the hypotenuse from ΔFGH
    at least one leg from ΔABC ≡ at least one leg from ΔFGH
    Therefore HL Congruency Theorem can be used to prove ΔABC ≡ ΔFGH
D) an angle from ΔABC ≡ an angle from ΔFGH
    the other angle from ΔABC ≡ the other angle from ΔFGH
    AA cannot be used for congruence.