What is a hetrozygus trait

Which strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a. doing door-to-door sellingb. using billboards to advertise the productsc. making online shopping services availabled. giving discounts on products

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks