Two random walkers A and B walk on a one-dimensional lattice. The length of each step taken by A is one. while the same for B is two, however, both move towards right or left with equal probability. If they start at the same point, the probability that they meet after 4 steps, is
1
\(\frac{9}{64}\)
2
\(\frac{5}{32}\)
3
\(\frac{11}{64}\)
4
\(\frac{3}{16}\)