When the concept of universal primary education was introduced

20/50

When the concept of universal primary education was introduced, education ................

was intended for all the sexes

was given free to all

focused on imparting skills

Giải thích

Đáp án AKhi nội dung cơ bản của nền giáo dục đại học được đưa vào, nền giáo dục => Dành cho mọi giới tính.
Dẫn chứng: The concept of universal primary education, regardless of sex, had been born, but it was still in the realm of the single-sex school.