4) Which of the following C expressions are lvalues? Which are not? Why? (2 points) int x; int* y; a) X+2 b) &x c) &*y d) *(&x+2) 5) Given these data types in a hypothetical language, Type tl: int; Type t2: int; struct tla; t2 b; } c; struct { t1 d; 12 e; t1 g[10][5]; 12 h[10][5); 12 I[10][10); Explain whether the following pairs of values are 1) Name equivalent 2) Structural equivalent or not equivalent a) 11, 12 b) c,f c) g, h d) h, I 4) Which of the following C expressions are lvalues? Which are not? Why? (2 points) int x; int* y; a) X+2 b) &x c) &*y d) *(&x+2) 5) Given these data types in a hypothetical language, Type tl: int; Type t2: int; struct tla; t2 b; } c; struct { t1 d; 12 e; t1 g[10][5]; 12 h[10][5); 12 I[10][10); Explain whether the following pairs of values are 1) Name equivalent 2) Structural equivalent or not equivalent a) 11, 12 b) c,f c) g, h d) h