Consider a Boolean function $f$$.$ Assume that $f $\backslash$in T$\_0,$ f

otin T$\_1$$$.$ What statements can be true for $f$$?$

a$)$ $f $=\backslash$mathrm$\{$const$\}$$

b$)$ $f $\backslash$in L$

c$)$ $f $\backslash$in M$

d$)$ $f $\backslash$in S$