When we eat rice chapatti we get a sweet taste after chewing them for some time. What is the reason behind this?

• A. This is because rice and chapatti are sweet in taste
• B. This is because rice and chapatti are both white in colour.
• C. This is because rice and chapatti contain proteins which is converted to sugars with the action of gastric juices.
• D. This is because rice and chapatti contain starch which is converted +o sugars with the action of saliva.