Which statement about the gas laws is correct?

a. gay-lussac's law states that pressure and temperature are directly proportional.
b. charles's law states that n and v are directly proportional.
c. no right choice.

Icant see the pictures 

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

A.(nh4)(2co3)is the correct answer