What Did Researchers Find When They Administered Botox Injections That

What did researchers find when they administered Botox injections that impaired individual's abilities to frown?

A) It took them a shorter time to emotionally process angry and sad statements that they were asked to read.
B) It took them a shorter time to emotionally process happy statements that they were asked to read.
C) It took them a longer time to emotionally process angry and sad statements that they were asked to read.
D) The Botox injections surprisingly did not impact their ability to process emotional information.