Answer
(a) series
(b) parallel
(c) parallel
Work Step by Step
(a) There is one single path through the circuit connecting both capacitors, so the capacitors are connected in series.
(b) The two capacitors are connected together on both sides and the circuit branches either through one capacitor or the other. Therefore, the capacitors are connected in parallel.
(c) The two capacitors are connected together on both sides and the circuit branches either through one capacitor or the other. Therefore, the capacitors are connected in parallel.