Iwas terrified. there were no thoughts about killing. the grenade was to make him go away—just evaporate—and i leaned back and felt my mind go empty and then felt it fill up again. i had already thrown the grenade before telling myself to throw it. the brush was thick and i had to lob it high, not aiming, and i remember the grenade seeming to freeze above me for an instant, as if a camera had clicked, and i remember ducking down and holding my breath and seeing little wisps of fog rise from the earth. which word from the excerpt  best  establish the tone?   a. grenade  b. brush  c. freeze  d. camera