Scientists in the Late 1960's Were Studying Two Rodent Cell

Scientists in the late 1960's were studying two rodent cell lines, one malignant and one normal. In an experiment which fused malignant and normal cells, what happened?

A) All of the hybrid (fused) cells behaved like malignant cancer cells.
B) Some of the hybrid cells lost malignant traits.
C) Some of the hybrid cells gained more extreme malignant traits.
D) Most of the hybrids died shortly after fusion.
E) The hybrids began to fuse together spontaneously making giant multinucleate cells.