In the nonprofit world of the performing arts, box office technology has essentially remained the same since the $1980$s$.$ A company named Tessitura is trying to change that. Tessitura is able to track every transaction with patrons on one databasefrom tickets and fund$-$raising to volunteering and gift shop purchases. This technology will allow arts groups to develop detailed customer profiles, which helps symphonies, operas and, theaters tailor their sales pitches to individuals. In other words, Tessitura is going to allow arts groups to engage in $\_\_\_\_\_\_\_\_.$a$.$marketing planningb.positioningc.Sales orientationd.relationship marketinge.Mass production