Answer:
two
Explanation:
Sensorimotor stage: In the theory of cognitive development which was proposed by Jean Piaget, the "sensorimotor stage" is the very first stage and consists of "six-sub stages". The stage two of Sensorimotor development is the "primary circular reactions" that generally occurs between the infant's age of one to four months.
In the primary circular reactions sub-stage, an infant starts adapting his or her different reflexes with his or her surrounding environment. In this stage, a child coordinates with new schemas and sensation.
In the question above, Adriana is clearly at the "primary circular reactions" stage of sensorimotor development.