What is the initial current "through" the capacitor (immediately after the switch is closed) ?

Yellow: 1A

Blue: zero  

Pink: 0.5A

Purple: None of these.

Answer: Yellow, 1A. Initially, when the capacitor has zero charge, it behaves like a short-circuit (zero resistance) because it is easy to put charge on an uncharged capacitor. The circuit is then, effectively...

The capacitor acting like a zero resistance wire which all the current flows through (initially). The other resistor is not involved in the (initial) current flow.