GAUSS7 1998 Problem 13

Past Contests GAUSS7 GAUSS (GR. 7) - 1998
1

The pattern of figures gauss7 1998 problem 13q is repeated in the sequence
gauss7 1998 probelm 13q2
The 214th figure in the sequence is

Answer Choices
A. \Large\triangle
B. gauss7 1998 problem 13b
C. \Large\square
D. gauss7 1998 problem 13d
E.gauss7 1998 problem 13e