Explanation:

- Education: This is considered social infrastructure. It focuses on human capital development by providing learning opportunities and enhancing skills.

- Transport: This is part of economic infrastructure. It includes roads, railways, ports, and aviation facilities which support the movement of goods and people, facilitating trade and economic activities.

- Healthcare: This is social infrastructure. It involves hospitals and healthcare services aimed at improving the population's health and well-being.

- Housing: This is also part of social infrastructure. It provides people with safe and stable living environments, contributing to general welfare.