A physical therapist advises a $50-$year$-$old female patient to do push$-$ups to improve her upper body strength. The patient doesn't have much motivation, so the therapist advises that she make them a part of her routine by doing the push$-$ups after she brushes her teeth. Based on this scenario and Fogg's Behavior Model, which of the following initial approaches will likely be most successful? Advising the patient to do$...$

at least $5$ push$-$ups and as many more as she can each time she brushes her teeth

two push$-$ups each time she brushes her teeth

ten push$-$ups after she brushes her teeth in the evening only

five push$-$ups after she brushes her teeth in the morning only