The emerging Swiss design gained its alphabetical expression in several sans-serif type families designed in the 1950s. The geometric sans-serif styles, mathematically constructed with drafting instruments during the 1920s and 1930s, were rejected in favor of new designs inspired by nineteenth-century Akzidenz Grotesk fonts. One of the new typefaces designed during this period was , which was created as a palette of twenty-one visually related fonts. All twenty-one have the same x-height and baseline, and all ascenders and descenders are the same length. Numbers replaced conventional nomenclature.

Which of the following is an example of the treatment technique for ocd called exposure and response prevention (erp)? a. callie has a hoarding compulsion. she becomes anxious whenever she has to throw something away; she even keeps stuff that she doesn't need and will never use. her therapist has arranged for callie's unnecessary belongings to be discarded of when she is away from home. b. carrie has an obsessive fear of contamination which has led to compulsive hand washing. her therapist is treating her by making her touch dirty laundry but not allowing her to wash her hands following for increasingly longer periods of time. c. kelly has religious obsessions. she feels that if she doesn't read biblical passages every hour of the day, she will do something evil. her therapist is treating her by having her attend religious services more frequently so that good thoughts will replace the bad ones. d. kerry has an obsessive fear of contamination which has led to compulsive hand washing rituals. her therapist is treating her by forcing her to wash her hands repeatedly, even when she doesn't feel anxious.