Answer Happy

Please answer ASAP, will upvote upon correct answer. Please show your work & do not copy existing answers(they are incorrect). Thank you in advance.
Four two-element arrays are shown below. (a) 1/2 (b) 1/2 7 7 חרחר I=1 1= -1 I=1 I-1 (d) (c) 2, j J חרחר Is it I=1 I= -1 I=11=-1 a) [5 points] Which one of these arrays can radiate in the x direction? Circle your answer. (a) (b) (c) (d) (none) b) [5 points) Which one of these arrays can radiate in the y direction? Circle your answer. (b) (b) (c) (d) (none)