I really need help with this, I am lost

2. For the following variable declarations, int *x_pt; long *y_addr; long *dt_addr; long *pt_addr; double *pt_z; int a; long b; double c; determine which of the following statements is valid (a) y addr=&a; (b) y addr = a; (e) dt_addr = &a; (d) dt_addr = a; (c) ptx=&as O ptaddr = a; (8) y addr = x.pt; (h) y addr = &b; (i) y addr = b; 6) dtaddr = &b; (k) dtaddr = b; (1) ptaddr = &b; (m) pt_addr = b; 1 of 2 PE 301 Homework #1 (n) y addr = dt.addr; (o) y addr=&c; () y addr = c; (a) da addr = &c; (r) dtaddr = c; (s) ptaddr = &c; (t) ptaddr = c; () y addr = pt.addr