Consider a doubly reinforced RCC beam with the option of using either $\text{Fe250}$ plain bars or $\text{Fe500}$ deformed bars in the compression zone. The modulus of elasticity of steel is $2 \times 10^{5} \mathrm{~N} / \mathrm{mm}^{2}. \text { As per IS} 456: 2000,$ in which type(s) of the bars, the stress in the compression steel $\left(f_{s c}\right)$ can reach the design strength $\left(0.87 f_{y}\right)$ at the limit state of collapse?
- $\text{Fe250}$ plain bars only
- $\text{Fe500}$ deformed bars only
- Both $\text{Fe250}$ plain bars and $\text{Fe500}$ deformed bars
- Neither $\text{Fe250}$ plain bars nor $\text{Fe500}$ deformed bars