How were the maya able to construct elaborate sculptures without the use of metal tools?
a) they used obsidian & jade to cut stone for sculptures.
b) they used hard stone tools to work softer into sculptures.
c) they used early bronze tools to make delicate cuts in stone sculptures.
d) they used wooden tools to shape soft volcanic rock into sculptures.

B) They used hard stone tools to work softer into sculptures.

Explanation:

It is noteworthy that the Maya, who had no metal instruments, made numerous articles from a thick and thick material, jade, especially a wide range of dress components, for example, belt plaques - or celts - ear spools, pendants, and furthermore covers. Celts were at times engraved with a stela-like portrayal of the lord.

The best-known case of a mask is presumably the demise cover of the Palenque lord Pakal, secured with sporadically molded jade plaques and having eyes produced using mother-of-pearl and obsidian; another passing veil, having a place with a Palenque ruler, comprises of malachite plaques. Thus, certain round and hollow vases from Tikal have an external layer of square jade circles. Many stone carvings had jade decorates.

the correct answer is a

the answer would be a).