Read the following paragraph from the section "Some Gestures Are Too Complex For Cars. " Company officials have pointed out that self-driving cars still "don't understand certain complex situations such as a construction worker communicating using hand gestures."

Which of the following can be inferred from the paragraph above?
A Self-driving cars will eliminate the need for construction workers to direct traffic.
B Self-driving cars may have trouble adapting to unexpected or unfamiliar situations.
C Self-driving cars will perform complex forms of communication with humans.
D Self-driving cars may not be the best choice of vehicle to use for construction jobs.