What is the most logical next event?

How to get the hylian shield in legend of zelda skyward sword
Go to lanayru gorge and talk to the thunder dragon.
Choose the lightning round mini-game and select the boss battle option. Start battling bosses that you have fought in the past.

Pick your answer from: a). He will talk about a " very sturdy shield ". Bear in mind, except from the shield you have equipped, when facing the boss, you only have the equipment you had at the time. b). This will bring only level 12 points per character once you defeat them. When after one battle beat your boss, a reward will be provided, which will hopefully help you catch the hylian shield. c). The boss battle cycle lasts a long time, making it great for encounter targets. Game leader profile appears at the top of the screen and under target settings. d). Although this tutorial has to be done using the hylian sword then by default the boss battle option also works. Test and upgrade the hylian sword hero.
a).