Answer:
a. is liable to purchasers as a manufacturer/seller of toys.
Step-by-step explanation:
Mattel is the producer of the toys even if it was it's manufacturer in China that made the toys. Using lead paint can lead to poisoning of children. So the toys produced can be considered to be harmful and defective.
The manufacturer of a product has a product liability on every good delivered to the consumer. Product liability is that borne by the manufacturer of a good for putting defective product in the hand of the consumer.
So for any damage or health issues that come up as a result of use of the toys, Mattel is liable.