Let A = {{1, 2, 3}, {4, 5}, {6, 7, 8}}. Determine which of the following is true or false: (i) 1 ∈ A (ii) {1, 2, 3} ⊂ A (iii) {6,7,8} ∈ A (iv) {{4, 5}} ⊂ A (v) ф ∈ А (vi) ф ⊂ А