Solution
= Solution
{c}
\b[False.] The four-cycle $C_4=K_{2,2}$ is bipartite, with alternating color classes, but contains a cycle and therefore is not a <tree (graph theory)>.
= Solution
{c}
\b[False.] The four-cycle $C_4=K_{2,2}$ is bipartite, with alternating color classes, but contains a cycle and therefore is not a <tree (graph theory)>.