can i have the answer of this question please?

Poly (lactic acid) (PLA) shows a promising prospect for medical fields. In bone hard-tissue application, glass fibers are adopted to improve the mechanical properties of PLA. Figure 2a and 2b show SEM photographs of two types of PLA/glass fiber composites. Figure 2: SEM photograph of two types of PLA/glass tiber composites i) Point out the function of interface. ii) Which composite in Figure 2 shows better interface between PLA and glass fibers? iii) Suggest two methods to improve the interaction between PLA and glass fibers. iv) Discuss and sketch one interfacial bonding mechanism between matrix and reinforcement. There are four types of interfacial bonding mechanism between polymer and fillers. Discuss and sketch any three bonding mechanisms