Urgent please and thank you

1. C

2. All cells of your body have the same DNA/genetic information but cell differentiation causes some genes to turn off and some to turn off. The activated genes are coded for which produce proteins and amino acids allowing cells to differentiate. E.g. Neurons and epithelial cell have same genetic information, however the genes coding for neurons in epithelial cells are turned off or deactivated which make them epithelial cells

maybe because its impossible for balloons to lift a whole entire house.