A person's sex is determined by

In terms of parenting styles, ______ tend to encourage infants to explore, and ______ have a tendency to be more cautious and protective

Fill in the blank with correct word

Menarche typically occurs around _______ years of age; its timing reflects __________

a) 10; nature, overwhelmingly b) 10; nature and nurture c) 12; nature, overwhelmingly d) 12; nature and nurture