Using Two-period Game with Multiple Stage Game Equilibria

PLZ be detailed. provide the strategy profile and show why this is a SPE

And then write a fully-specified SPNE (use utility)

Thank you

Consider a two-period repeated game with the following stage game. This stage game is played twice and the repeated-game payoffs are simply the sum of the payoffs in each of the two periods. A strategy of each player is to choose one of C, D,E in stage 1. and for each possible outcome of stage 1, choose one of C, D, E in stage 2. Show that, For each player, playing 0 in period 1 be sustained in a subgame perfect equilibrium of this game. [In your answer. provide the relevant SPE strategy profile and show that it is indeed a SPE]