Which of the following choice is correct? 1. House rent accounts for 50% of his income. 2. The hot weather accounts for the dramatic increase in electricity use. 3. Software products accounts for over half of our commercial products. 4. We cannot account for his failure in the English examination.
A.
"account for" in sentence 1 and sentence 2 has the same meaning.
B.
"account for" in sentence 2 and sentence 4 has the same meaning.
C.
"account for" in sentence 3 and sentence 4 has the same meaning.
D.
"account for" in sentence 2 and sentence 3 has the same meaning.