प्रबलित कंक्रीट अवयव (RCC member) में नम्य बॉन्ड प्रतिबल (flexural bond stress) मुख्य रूप से किसके परिवर्तन के कारण उत्पन्न होता है?

Consider the following statements and identify the correct option: Statement A: When an RCC beam is subjected to torsion, the actual flexural strength of the beam reduces. Statement B: The interior beams in a continuous beam-supported slab system cannot be designed as T-beams for determining their flexural strength at all sections.