Which stage of erik erikson’s psychosocial theory of personality is the first one and occurs during infancy?

Need in all of themmm only answer if you know pls

The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory

Acompound machine is also called a machine. a. force b. simple c. complex d. directional