What word strategies did agatha christie use in her novels to steer her readers in the right direction to solve the crime?

What is wrong with the sentence. the car is packed, we're already to go, and the weather is looking beautiful.

"and these i address to all females that would be married, or are already so; not that i suppose their sex more faulty than the other, and most to want advice, for i assure [women], upon my honour, i believe the quite contrary; but the reason is, because i esteem them better disposed to receive and practice it, and therefore am willing to begin, where i may promise myself the best success." this statement from franklin's "rules and maxims for promoting matrimonial happiness" best demonstrates his use of criticism to argue his point his use of common sense to appeal to women his use of flattery to gain women's attention his use of facts to prove his point

What is a positive result of the scientific revolution