To create a functional design for a solor cooker. __ and __ must be met form; function size;shope supply; demond criteria; constrain

## Step 1<br />The problem is asking us to identify the two factors that must be met when creating a functional design for a solar cooker. The options provided are: form; function, size; shape, supply; demand, and criteria; constraints.<br /><br />## Step 2<br />The first option, form; function, refers to the physical appearance of the product and its intended use. While this is important, it doesn't directly address the functionality of the solar cooker.<br /><br />## Step 3<br />The second option, size; shape, refers to the physical dimensions of the product. This is also important, but it doesn't directly address the functionality of the solar cooker.<br /><br />## Step 4<br />The third option, supply; demand, refers to the market dynamics of the product. This is important for the business aspect of the product, but it doesn't directly address the functionality of the solar cooker.<br /><br />## Step 5<br />The fourth option, criteria; constraints, refers to the standards that the product must meet and the limitations that the product must work within. This is directly related to the functionality of the solar cooker.