A Researcher Injected Photoactivatable Actin Monomers into Cells That Had

A researcher injected photoactivatable actin monomers into cells that had been infected with Listeria and selected actin tails to study in more detail using fluorescence video microscopy.She photoactivated fluorescent actin in a small region of the tail and observed that the faster-moving bacteria had __________ and demonstrated that the rate of movement and the length of the tail were _______________.

A) longer tails,linearly related
B) longer tails,not related at all
C) shorter tails,linearly related
D) shorter tails,not related at all
E) longer tails,exponentially related