using R programming

You collected the following data for 100 dogs and stored them in a data frame calleddogs:

1. The concentration of "protein X" in each dog's blood, which you have stored in a column indogslabelledproteinX;

2. A "sociability score" for each dog, which you have stored in a column in dogs labelledsociability.

You want to use a linear model to test the hypothesis thatdoublingthe concentration of protein X results in alinearincrease in sociability. Which one of the following R commands would you use?