Final answer:
At 4 months old, Josh is beginning to move around and is likely to show his own unique patterns of motor development, learning new skills with ingenuity and creativity (option a and b). Predicting Josh's exact behavior compared to other babies would be inaccurate, as each child develops at their own pace and with their own style.
Step-by-step explanation:
Josh, who is at 4 months, is just beginning to move around, and it is likely that he will show ingenuity and creativity as he masters new skills. Each baby is unique and will develop at their own pace, with individual variations. While there are developmental milestones that most children achieve, such as sitting up with support and lifting their head 90 degrees while lying prone, infants also have their own ways of learning and exploring their environment.
It is not accurate to predict that Josh will behave exactly like every other baby. Each child's path to mastering motor skills is distinct, influenced by their environment, temperament, and interactions. Likewise, Josh will not necessarily show intense fear as it's a generalization and such emotions can vary from child to child. While parental guidance is helpful in nurturing development, many motor skills are learned naturally as children interact with their surroundings and are motivated by curiosity.
Hence, the answer is option a and b.