Which sentence best shows that Ostrom caused a major shift in how economists approach a particular subject?

Which revision best removes the informal language from this passage? (1) you should totally hire me to be your front deskreceptionist at your veterinary clinic because i loveanimals. (2) not only have l owned a wide array of pets, have also volunteered for three years at the crater valleyanimal shelter. (3) this experience would allow me to customers keep their animals calm and controlled whilethey wait for their appointments. oa. change only sentence 3 to 'this experience would allow me to customers keep their animals in an appropriate state ofanticipation while awaiting their appointments. ob. there is no informal language, so no change is necessary. oc. change only sentence 2 to not only have i owned a wide array ofpets, i have also volunteered for two years at the crater valleyanimal shelterod. change only sentence to believe that have the potential tosucceed as a receptionist formour veterinary office because i loveanimals