The correct answer is (a) Brazil and Malaysia.
Brazil and Malaysia are the two major producers of natural rubber in the world. In 2020, Brazil produced 1.5 million metric tons of natural rubber, while Malaysia produced 1.4 million metric tons. These two countries account for over 60% of the world’s natural rubber production.
The other options are incorrect. Vietnam and India are not major producers of natural rubber. China and the Philippines are minor producers of natural rubber. Thailand and Indonesia are not among the top 10 producers of natural rubber.
Natural rubber is a white, milky fluid that is produced by some plants. It is a polymer of isoprene, and it is used in a variety of products, including tires, shoes, and gloves.