What is the approximate average length of a giraffe’s tongue?

Many years ago, we took the children to the West Midlands Safari Park. With drive through animal enclosures one contained giraffes , and I don’t know if they were used to visitors feeding them but they were quite friendly and inquisitive.One approached the car and as we didn’t think the giraffes were dangerous , the windows were open . It brought its head down and licked my daughter’s arm . She freaked out. I think most people! This was the trip when one member of our party , Barking Mad Simon , was driving his brand new company car . Through the monkey enclosure. Not a good idea . The monkeys disagreed , they liked that car . Especially the taste of the rear plastic spoiler . So they bit great chunks off . Imagine explaining that to your boss. And the insurance company.

the multiple choices are wrong, a,18 to 22,then c,20 to 22 ,but different cm sizes,check before submitting,if from USA don't use metric as everybody knows yanks can't handle the metric system