The correct option is B scale
The word that has same context as the italicized word in both the sentences is option B, scale. Scale means a dry flake of skin. Scale also means to climb up a steep surface. Context of sentence I is that there was no scale of snow in the morning. Second sentence means Santosh Yadav was the first Indian woman to scale the Mt. Everest. Option A 'climb' means to ascend or mount. Option C 'level' means measure or degree. Option D 'step' means a footstep or stairs. All these options A, C and D cannot be used on both the sentences together. So, the best fit is Option B, scale.