Your question involves a lecture, more precisely, an excerpt from the short text titled 'The Grandfather', by Gary Soto, which reads the following:
"During its early years, I could leap over that tree, kick my bicycling legs over the top branch and scream my fool head off because I thought for sure I was flying. I ate fruit to keep my strength up, fuzzy peaches and branch-scuffed plums cooled in the refrigerator. From the kitchen chair he brought out in the evening, Grandpa would scold, “Hijo, what’s the matta with you? You gonna break it.”
Writers use a tool called 'sensory imagery', which as it states, appeals to our senses. We often think that these are poetic tools that only appeal to our vision, however, a writer could make his work come to life through any of our senses, smell, touch, taste, and so on.
As this example requires picturing a metaphor where the legs relate to the bicycle, the writer attempts to appeal to our sense of vision.
The correct answer is letter D.
Happy 2019!
