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A research assistant selected $75$ undergraduate students at random from the list of all students enrolled in the psychology-degree program at a large university. She asked each of the $75$ students, extbackslash{}“How many minutes per day do you typically spend reading? extbackslash{}” The mean reading time in the sample was $89$ minutes, and the margin of error for this estimate was $4.28$ minutes. Another research assistant intends to replicate the survey and will attempt to get a smaller margin of error. Which of the following samples will most likely result in a smaller margin of error for the estimated mean time students in the psychology-degree program read per day?$\newline$A) $40$ undergraduate psychology-degree program students selected at random$\newline$B) $40$ undergraduate students selected at random from all degree programs at the university$\newline$C) $300$ undergraduate psychology-degree program students selected at random$\newline$D) $300$ undergraduate students selected at random from all degree programs at the university