1. All the following involves scientific experimentation except a. observation b. conclusion c. method of experiment d. creation of results

Explanation:

D = creation of results

the picture above will tell you more

Hi ! 1- voici les crayons2- ce sont des gommes3- voilà des livres4- voici des affiches5- où sont les cartes ? 6- voici les bureaux de mme guddevoici, voilà have no plural.so, you just have to put the nouns in plural.c'est = "ce est" as "le arbre", you know that two vowels can't succeed so we write "l'arbre"and "c'est"> plural ce sont (ce est = ce sont. this time no problems of vowels).then you only have to find the third person plural of "être" because "est" is third person singularrecap "être"je suistu es il/elle/on > c'estnous sommesvous êtesils/elles sont > ce sonthope i