Answer: The correct answer is Option A.
Explanation:
For the given options:
Mixtures are defined as the solution win which components are mixed in indefinite proportions. Every substance retain their individual chemical properties.
Atoms are defined as the smallest unit which cannot be further divided.
An element is defined as the substance which is made of similar kind of atoms. All the atoms in an element have same atomic number.
According to the question:
A bowl has flour and sugar init. Both the compounds have their individual properties retained. Thus, they are forming a mixture.
Hence, the correct answer is Option A.