If the density of the material increase, the value of young's modulus

If the temperature of the wire is increased, then the Young's modulus will

When temperature of a material increases, its Young's modulus

(A): Metals have larger values of Young's modulus than its alloys (R): A material with larger value of Young's modulus requires a large force to produce small changes in its length

If in the above question the Young's modulus of the material is Y, the value of extension x is: