Ineed on this question for english 3

Astudent is writing a conclusion for a research based informative essay on the possibility of exploring and inhabiting mars. what should he include in his conclusion. select two options

My little sister is ackd me what is 200×300÷489 what! i willl give anyone 15 points

Which sentence best contrasts two things? a. air travel, like bus travel, is a fun way to get from one place to another. b. air travel is a fun and relatively easy way to get from place to place. c. both bus travel and air travel require substantial planning. d. air travel is much more expensive than bus travel.