Clearly French since only about 3 countries that you could find on a map speak it and at least 2 of them also speak English.
You must be terrible with a map.
French is widely spoken in a few more countries than that.
Belgium, Benin, Burkina Faso, Burundi, Cameroon, Canada, Central African Republic, Chad, Comoros, Côte d'Ivoire, Democratic Republic of the Congo, Djibouti, Equatorial Guinea, France, French Guiana, French Polynesia (including Tahiti), Gabon, Guadeloupe, Guinea, Haiti, Luxembourg, Madagascar, Mali, Martinique, Monaco, New Caledonia, Niger, Republic of the Congo, Rwanda, Senegal, Seychelles, Switzerland, Togo and Vanuatu all have French as their sole or one of their official languages.
In addition, it is widely spoken in the following other countries: Algeria, Republic of the Congo, Mauritius, Morocco, Reunion and Tunisia.
I would hope that most educated people would be able to find the vast majority of at least Belgium, Canada, Chad, France, Haiti, Luxembourg, Madagascar, Switzerland, Algeria and Morocco on a map.
French is also the second most widely spoken language in Europe behind German so a handle of French on top of your English is very useful for European trips.
Also, having a handle on one of the Romance languages (e.g. French, Italian, Spanish, Portuguese, Romanian, Romansch) can help someone figure things out when trying to communicate with someone who speaks another Romance language.
And for the record, no, I don't speak French.