(b) 1. A driver of a motor vehicle who causes physical injury as defined in article ten of the penal law to a pedestrian or bicyclist while failing to exercise due care in violation of subdivision (a) of this section, shall be guilty of a traffic infraction punishable by a fine of not more than five hundred dollars or by imprisonment for not more than fifteen days or by both such fine and imprisonment. 2. If such driver of a motor vehicle causes physical injury while failing to exercise due care in violation of subdivision (a) of this section, then there shall be a rebuttable presumption that, as a result of such failure to exercise due care, such person operated the motor vehicle in a manner that caused such physical injury.

(c) 1. A driver of a motor vehicle who causes serious physical injury as defined in article ten of the penal law to a pedestrian or bicyclist while failing to exercise due care in violation of subdivision (a) of this section, shall be guilty of a traffic infraction punishable by a fine of not more than seven hundred fifty dollars or by imprisonment for not more than fifteen days or by required participation in a motor vehicle accident prevention course pursuant to paragraph (e-1) of subdivision two of section 65.10 of the penal law or by any combination of such fine, imprisonment or course, and by suspension of a license or registration pursuant to subparagraph (xiv) or (xv) of paragraph b of subdivision two of section five hundred ten of this chapter. 2. If such driver of a motor vehicle causes serious physical injury while failing to exercise due care in violation of subdivision (a) of this section, then there shall be a rebuttable presumption that, as a result of such failure to exercise due care, such person operated the motor vehicle in a manner that caused such serious physical injury.

(d) A violation of subdivision (b) or (c) of this section committed by a person who has previously been convicted of any violation of such subdivisions within the preceding five years, shall constitute a class B misdemeanor punishable by a fine of not more than one thousand dollars in addition to any other penalties provided by law.

(e) Nothing contained in this section shall prevent the court from imposing any other authorized disposition, including a period of community service.