Why did Jennifer Lavers trade her plastic iPhone case and toothbrush for bamboo ones?

  i think you forgot to put the options but if your reffering to this question then your answer will be "b"  a. add "to" to the base form to create an adjective.b. when the subject of a sentence is singular, add "–s" to the base form.c. add "–ed" to irregular base forms to form the past participle.d. do not use a base form with plural subjects

The correct answer is .com because anyone that has access to internet can post and it can be incorrect information or biased. i also got this correct on my test.