To solve this problem, we need to understand the ozonolysis reaction of alkenes.$\\$Ozonolysis of an alkene involves the cleavage of the double bond, resulting in the formation of carbonyl compounds.$\\$Given that methanal (formaldehyde, $$HCHO$)$ is one of the products, the alkene must have a terminal $\\$double bond with at least one hydrogen atom attached to the carbon involved in the double bond.$\\$Let's analyze the options:$\\$