[单选题]
A positive and a negative charge of equal magnitude are loc/ ar ydkf,xh- 8h8dg:c*8zaalated on the same -t8x):c lp3 vi)cvv sshorizontal li)c8i -vsl)s3 : pxvvctne.
What is the direction of the net electric field at the point marked X, equidistant from the two charges?
