Causal Relationships and Conditions - I

Answer the following question based on the information given below.

    A causes B or C, but not both.    
    F occurs only if B occurs.
    D occurs if B or C occurs.
    E occurs only if C occurs.
    J occurs only if E or F occurs.
    D causes G or H or both.
    H occurs if E occurs.
    G occurs if F occurs.