Following are two sentences with four emboldened words in each. The words may or may not be In their correct sequence. There are options with possible rearrangement. Choose the correct option.
I.The scientific community endeavor
A. to explore innovative ways to combat
B.  climate change, seeking sustainable solutions for a greener future
C.
II.Learning a new language can be a challenging continues P. , but it opens Q. doors to new cultures, ideas, and opportunities R.