Which sentence(s) of the following paragraph should be referenced? (The paragraph is broken into individual sentences for ease of identification.) (1) The Consumer Price Index (CPI) has unexpectedly risen by 2% in the last quarter according to the Statistical Bureau. (2) The CPI inflation rate indicates how the cost of living in capital cities changes. (3) However, it may not be as useful for people living in rural areas. (4) For instance, it has been estimated that the cost of living in some rural towns is much higher than that in cities. 1 and 2 and 3 1 and 4 2 and 4 All four sentences 2 and 3