How is an indifference map like a topographic map?

Please provide the best answer for the statement.

Each elevation line on a topographic map shows an equal level of elevation. As you move along a line, the elevation stays the same. Similarly, each line for an indifference curve in an indifference map shows an equal level of total utility. As you move along an indifference curve, total utility stays the same. Elevation lines do not cross in a topi map, nor do indifference curves intersect. If you switch to another line on a topo map, it will show a higher or lower level of elevation. If you move away from the origin in an indifference map and switch to another indifference curve, it will show a higher level of total utility. If you move toward the origin in an indifference map, and switch to a different curve, it will show a lower level of total utility. Both maps do not show every level or gradation, but just major ones to illustrate differences (elevation for a topi map; total utility for an indifference map).