Sentence 1: MERS respiratory illness found in U.S., officials confirm

Sentence 2: First case of MERS, a SARS-like respiratory illness, reported in North America

From 0 to 5 (0="no meaning overlap" and 5="means the same thing"), how similar are the two sentences?

Possible answers: A. 0 B. 1 C. 2 D. 3 E. 4 F. 5
E.