(C) Más lento que which means "more slower than" which is actually true. Because the others are more economic than, more slower than and more uncomfortable than. I guess it could technically be any but it depends on the situation.
Answer:
He writes the thesis to keep populations clean and provides two arguments to support it (15 lines).
Explanation:
is this it?
El tiene pelo negro, el es 5 pies, 6 purgadas. El tiene unos zapatos negro con una estrella por alante, una gorra militar. una camisa blanco.
Hope this helps.