[" Which of the following would "],[" be considered a transgenic "],[" organism? "],[" (A) a bacterium that has been "],[" treated with a compound that "],[" affects the expression of "],[" many of its genes "],[" (B) a human treated with insulin "],[" produced by E.coli bacteria "],[" (C) a fern grown in cell culture "],[" from a single fern root cell "],[" (D) a rat with rabbit haemoglobin "],[" genes "]