Consider the following case. The government aims to evaluate the impact of for- poor-students program (Bantuan Siswa Miskin) on students' test scores Cout- come, Y). A researcher use the following regression specification to estimate the model: TestScorei = a + BBSM; + TXi+ci where i indicates student and BSM is a binary variable with a value of 1 if student i's receives BSM. What are the components that would most likely be in e? Discuss whether the specification uses a pre-post or a simple difference method? Discuss the counterfactual in the specification above. Using the specification above, discuss whether you would be able to esti- mate an unbiased estimate on the effect of BSM on students' test scores