B: $x^{****2}$

A: $x^{**}2$

C: $\frac{x}{2}$

You are correct.

Your receipt no$.$ is $158-6349$

Previous Tries

Put the following lines into a glowscript script and run them:

theta $=0\mathrm{.}0628$

particle$\_$position $=$vector$(1\mathrm{.}0,1\mathrm{.}0,0)$

obs location$=$vector theta