The correct answer is option 2: Indonesia and Malaysia. Indonesia and Malaysia are the major palm oil producing countries in the world.

Option 1: Myanmar and Thailand are not major palm oil producing countries. While both countries do produce palm oil, their production levels are not as high as Indonesia and Malaysia.

Option 3: Laos and Vietnam are not major palm oil producing countries. They do produce palm oil, but their production levels are relatively low compared to Indonesia and Malaysia.

Option 4: Cambodia and Philippines are also not major palm oil producing countries. Although they do have some palm oil production, it is not on the same scale as Indonesia and Malaysia.

Palm oil is widely used in various industries, including food, cosmetics, and biofuels. Indonesia and Malaysia account for the majority of the global palm oil production, contributing to over 80% of the world`s total production. These two countries have ideal climate and land conditions for palm oil cultivation, leading to their dominance in palm oil production.