for circle O name all of the arcs shorter than a semicircle. please help asap thank you so much!!

Answer:
The last option
Step-by-step explanation:
arc DA is larger than a semicircle so the first answer is not correct
arc BOC is also larger than a semicircle so the second answer is not correct
arc DAC is also larger than a semicircle so the third answer is not correct
all arcs in the last options are shorter than the semicircle so the last option is correct