Pick up the correct statement from the following:

• According to the petrological characteristics, concrete aggregates are classified as heavy weight, normal weight and light weight
• According to the shape of the particles, concrete aggregates are classified as rounded irregular, angular and flaky
• According to the surface texture of the particles, the concrete aggregates are classified as glassy, smooth, granular, rough, crystalline, honey combed and porous
• All the above.