See the multi-choice question below:

Sentence 1: Air travel is a perilous thing; just today, a stratosphere roc crashed head-on into a fragment of the sky and was killed with all its passengers.

Sentence 2: We are entering a new era of safe air travel.

If the first sentence is true, then is the second sentence true?
Options are: [I] yes; [II] it is not possible to tell; [III] no;
[III]