[单选题]
Ignoring air resistance, ts0oh5p klu/a1pnq/ 0o8 1js:anfr yx5 he horizontal comp,w0cyh;xbzz z5t.3agonent of a projectile's accelerationgyztah w x5cz;3,.z 0b
A. is zero.
B. remains a non-zero constant.
C. continuously increases.
D. continuously decreases.
