If you used R to read in file week1_a.csv nto a data frame dat, how could you create a new data frame tall that only contained rows with heights greater than 184? Select one or more: tall- subset (dat, heights > 184) b. tall 184,] C. tall <. dat> 184),] d. tall 184) estion 4 swer saved arked out of If you used R to read in file week1_a.csv into a data frame dat, how could you find the value in row 6 of the column labeled weight ? Select one or more: Flag question dat[6,2] b. dat[2,6] C. datSweight[6] dat[6,"weight"] elect one or more: D a. args(length) ti. help (length) C. Plength d. length(x)