Geometry help !!!! asap!!!?

I have a really low grade right now and have to bring it up asap ! can you please help me ?? I just some questions

  is a diagonal of parallelogram ABCD. Which angle is congruent to  DAC?
 
(Points : 1)
        BCA

        BAC

        ACD

        ABC


2.   is a diagonal of parallelogram ABCD. Which is the m BCA?
 
(Points : 1)
       40°

       60°

       100°

       120°


3. What is m FEH?
 
(Points : 1)
       30°

       50°

       65°

       80°


4. Complete the two-column proof below by choosing the correct reason for the statement.
What is the justicifaction for the fourth step (Reason 4)?
 
(Points : 1)
       Alternate Interior Angles Theorem

       Converse of the Alternate Interior Angles Theorem

       definition of a parallelogram

       SAS Congruence Postulate


5.
Complete the two-column proof below by choosing the correct reason for the statement.
What is the justicifaction for the sixth step (Reason 6)?
 
(Points : 1)
       Alternate Interior Angles Theorem

       Converse of the Alternate Interior Angles Theorem

       definition of a parallelogram