Which of the following is not a type of plate boundary?
a. convergent
c. transform
b. subduction zone
d. all of the above are types of plate boundaries

c, beacuse i said so but fr it really is                                                                                                                                            

ń, wǒ shuō yīngyǔ, dàn wǒ huì shuō qítā yǔyán, rú xībānyá yǔ fǎyǔ yìdàlì yǔ hé pǔtōnghuà, suǒyǐ bùyào pànduàn, dànshì